Technologists Celebrated during National Radiologic Week

Radiologic technicians have been on the front lines of the COVID-19 pandemic more than most people. These technicians have taken a front-seat approach and made a direct impact on the virus outbreak. They work extremely close with coronavirus patients daily, unlike many people throughout the world.

National Radiologic Technology Week (NRTW) marks the centennial celebration for the American Society of Radiologic Technologists (ASRT.) It also exhibits and honors those who perform thousands of X-rays, MRIs, CTs, mammograms, nuclear medicine, cardiac and vascular international, and ultrasound procedures weekly. The vital work of radiologic technologists across the nation are celebrated annually during NRTW. Wilhelm Conrad Röntgen discovered the x-ray on November 8, 1895, which is commemorated by NRTW.

More than 340,000 radiologic technologists have completed chest X-rays, CT scans, and cardiac ultrasounds for COVID-19 patients. These lifesaving procedures have been crucial in detecting and handling virus advancement. When dealing with pandemic patients, proper ventilation placement and ensuring patients receive appropriate care is paramount.

To learn more about NRTW, check out the American Society of Radiologic Technologists website. For more information about purchasing radiologic parts, contact RadParts for all your needs today.

RadParts is the world’s largest independent distributor of OEM replacement parts. We specialize in low-cost parts for repairing linear accelerator and radiation equipment. Our mission is to provide high-quality, user-friendly, low-cost parts and support for linear accelerators and radiation equipment. Contact RadParts at 877-704-3838 or visit us on the web: https://www.radparts.com.

Written by the digital marketing staff at Creative Programs & Systems: www.cpsmi.com.

Problematic Body MRI Discrepancy Rates and Errors

Previous studies have outlined disagreement between radiologists and inconsistent secondary interpretations of MRI scans. Researchers at the University of Vermont and the University of Southern California Medical Center have recently published the first study to focus on secondary interpretations of body MRI evaluated by type of likely error. According to the journal article, up to 70 percent of body MRI interpretations have at least one discrepancy. Since most of these errors are cognitive, a push for sub-specialty trained providers to read these studies is crucial.

Interpretation errors, especially those in radiology, are particularly common with MRI scans. Pelvic and abdominal imaging are the most easily misread. These mistakes commonly lead to delayed or improper treatment plans. Discrepancy rates can range from two percent to six percent. Secondary interpretations can be as high as 56 percent, according to existing research.

Researchers retrospectively reviewed 357 secondary body MRI reports captured between January 2015 and December 2018 to determine the actual discrepancy rate. Initial reports were analyzed, and those with discrepancies were divided.

At least one discrepancy was identified in 246 cases, or 68.9 percent. A secondary discrepancy was found in 54 of those cases. Most differences were attributed to cognitive errors (68.8 percent), and secondary discrepancies, considered perceptual errors, accounted for 59.3 percent.

To thoroughly examine the reasons behind these discrepancies, researchers found that faulty reasoning (misclassification of the abnormality) was responsible for 34.3 percent of all instances, including 37.8 percent of primary discrepancies. Additionally, search satisfaction occurred with 37 percent of second discrepancies and 15 percent of overall discrepancies.

The team hypothesized that MRI scans were ordered to answer a specific question. Once that question was answered, the radiologist likely did not examine the rest of the scan for other abnormalities. The discrepancy rates are higher than what was previously reported due to several factors. General radiologists might be unaware of the MRI’s high sensitivity and ability to determine specific diagnoses. Body imaging frequently has the highest error rates, and double-reading by sub-specialists also increases the discrepancy rate.

Read the full article in the American Journal of Roentgenology for more information regarding discrepancy rates and errors. For all your radiation equipment repair needs, contact RadParts today. We have a vast selection of innovative repair solutions that can save you up to 50 percent or more.

RadParts is the world’s largest independent distributor of OEM replacement parts. We specialize in low-cost parts for repairing linear accelerator and radiation equipment. Our mission is to provide high-quality, user-friendly, low-cost parts and support for linear accelerators and radiation equipment. Contact RadParts at 877-704-3838 or visit us on the web: https://www.radparts.com.

Written by the digital marketing staff at Creative Programs & Systems: www.cpsmi.com.

New Cancer Treatment Delivers Weeks of Radiation Therapy in Just One Second

For decades radiation therapy has been used to treat cancer and is still the best option we have at defeating the disease. The downside to radiation therapy is that it often takes weeks or even months for treatment session cycles and comes with collateral damage by also destroying healthy cells in the body.

However, researchers at the University of Pennsylvania have discovered a way to deliver treatment in under one second. FLASH radiotherapy is an emerging form of therapy that involves giving a patient a one-second dosage of concentrated radiation that they would usually receive over a week. Experiments have proven that the result of the cancerous cells is comparable to the standard treatment duration; however, the exception being that damage to healthy tissue is significantly reduced.

Pennsylvania University researchers found that adjusting the fundamental particle used could make FLASH radiotherapy more effective. Typically, electrons are used in therapy, but they don’t penetrate very deep into the body, meaning they’re really only useful for shallower cancer types such a skin cancer.

The FLASH therapy model uses protons and showed that linear accelerators could be modified to produce and deliver these particles. Since protons penetrate deeper into body tissue, they can be much more effective in treating more significant tumor types.

“The is the first time anyone has published findings that demonstrate the feasibility of using protons, rather than electrons, to generate FLASH doses, with an accelerator currently used for clinical treatments,” says James M. Metz, co-senior author of the study.

Read more on how FLASH treatment is making breakthroughs in treating cancer here.

Radparts provides high quality, user-friendly, and low-cost parts and support for linear accelerators and radiation equipment. More information can be found at https://www.radparts.com.

Replacing or Upgrading a LINAC? Here’s What You Need to Know.

Radiotherapy is a critical treatment process used in hospitals and clinics for patients with cancer. Therefore, it is extremely important to ensure that you are using the right equipment to gain the highest quality of care. Linear accelerator (LINAC) systems are one of the most expensive assets in terms of medical equipment today. Choosing to replace or upgrade LINAC equipment is a significant matter as it impacts the facility’s operations, doctor’s decisions, and the patient’s health. There are four main categories that equipment can fall into that are based on a hospital or clinic’s needs and capabilities.

Newer Equipment with Full Upgrades

Being able to provide the best level of care for patients should be the highest goal for any medical facility. Thus, having new equipment with upgraded features offers the best of the best in terms of care. If a clinic needs to move, it would still be cost-effective to pay the relocation charges, which can be over $100k in expenses, instead of purchasing a new replacement LINAC system.

Newer Equipment with Fewer Upgrades

Choosing a LINAC system with fewer upgrades can save money and might be more appropriate for smaller clinics that see fewer patients. However, specific technologies, like portal imaging, may be beneficial for those who want higher-quality devices. There is a good chance that a facility will be continuing to use this equipment for a while before it depreciates. The best advice is to determine which upgrades would be most appropriate for your office.

Older Equipment with Full Upgrades

If your LINAC system is older than 20 years, it’s likely your machine has paid for itself even after additional upgrades. Older equipment can still be reliable, but as technology progresses, they soon will end up costing you more money and become less efficient. Also, if a company needs to relocate, the relocation costs may end up costing you more than a new machine.

Older Equipment with Fewer Upgrades

This remaining category should generally be looked upon as the last consideration. In most cases, equipment will no longer perform the necessary tasks required for treatments. Replacement parts will continue to become sparse and more costly as new machines come into the marketplace, rendering older versions obsolete.

Radparts is the world’s largest independent distributor of OEM replacement parts for Linear Accelerators and Radiation Oncology equipment.  Radparts provides high quality, user friendly, low cost parts and support for linear accelerators and radiation equipment. More information can be found at https://www.radparts.com/.

Beams Used in Radiation Therapy

The use of external beam radiation therapy is one of the most common forms of cancer treatments that a doctor or oncologist will recommend. This method involves radiotherapy equipment such as a linear accelerator that aims radiation from outside of a patient’s body and directly targets local areas of a cancer site. Various types of cancers can be treated with external beam radiation therapy, and depending on the unique characteristics of the tumor, a selection of systems and treatments will be formed for the best outcome. Not only are there different types of machines that can be used, but also the radiation beam used in external radiation therapy can come from three kinds of particles called photons, protons, and electrons.

Photons

The majority of radiation therapy machines use ionizing photon beams since they can reach tumors deep in the body. Photons are also used in x-rays, although they consume a much lower dose of the particle in comparison. The radiation that is delivered during photon treatment will damage the DNA of tumors and healthy cells alike. Radiation therapists aim to maximize the dose targeting the tumor while minimizing the radiation to nearby healthy tissues by creating different paths with multiple fields. To avoid overexposure to healthy cells, the treatment is generally given in stages over repeated scheduled sessions so that the healthy cells have time to repair.

Protons

Charged particle radiotherapy is an alternative method of radiotherapy that uses beams of protons or other positively charged particles such as helium, carbon, or other ions that are not photons. These types of beams can also reach tumors deep inside the body, but they perform differently than photons as they do not scatter radiation on their path and will stop once they reach the targeted tumor. Due to the physical characteristics of charged particles, it may be possible to cover the tumor area with only one radiation field, creating an advantage over the use of photons to spare more healthy tissues and cells. Clinical trials are continuing to compare the usage of these two energy types. There are cancer centers that are beginning to use proton beams in radiation therapy, but they have higher costs and require a larger space to fit the increased size of the equipment.

Electrons

Particles with a negative charge are electrons. Electron beam radiation therapy is designed to treat cancers like lymphoma and other tumors near the surface since these electrons do not go deep into the body. These therapy options can be done in two different ways:

  1. Spot treatment – This method is used for one or more cancerous spots on the body that needs treatment.
  2. Total Skin Electron Beam Therapy (TSEB) – This method is used when the entire surface of the skin needs to be treated. Other treatments called compensation treatments can be part of the treatment plan to guarantee that every area of the skin receives the proper dose required.

Radparts is the world’s largest independent distributor of OEM replacement parts for Linear Accelerators and Radiation Oncology equipment. Radparts provides high quality, user-friendly, and low-cost parts and support for linear accelerators and radiation equipment. More information can be found at https://www.radparts.com/.



Solutions for Cooling Systems of a LINAC

LINACs are a type of particle accelerator that increases the kinetic energy of a particle that can be used in a variety of different areas such as scientific research or during radiation therapy to remove cancer cells of a patient. As with most medical and lab-related equipment, particle accelerators are negatively affected by thermal changes, especially with an increase of heat. It is of most importance to maintain temperature control of the equipment components to guarantee the integrity, performance, and reliability of the system. A solution that helps maintain temperature control is using a custom liquid cooling system. We will further discuss this option below so you can adequately care for your LINAC equipment.

How A LINAC Works

A medical linear accelerator (LINAC) produces and delivers a radiation beam using high energy x-rays or electrons to a targeted area to destroy cancer cells while carefully not damaging the surrounding normal and healthy tissues nearby. The medical equipment accelerates electrons in part of the accelerator called the waveguide and then allows the electrons to collide with a heavy metal target to create the high-energy x-rays. The radiation beams are shaped as they exit the machine to conform to the shape of the patient’s tumor. The patient lies on a movable treatment couch and the lasers are designed to be sure that the patient is in the correct position. The couch can move in a variety of directions along with the gantry – the part of the accelerator in which the radiation beam comes from.

Cooling System Needs

When using a LINAC during IMRT (intensity-modulated radiation therapy), the thermal consistency is necessary to maintain beam energy and stability. All the parts inside the equipment such as the tungsten target, waveguide, acceleration chamber, and the magnets need accurate thermal control to eliminate heat buildup and to allow the temperatures to remain the same for optimal usage for operation. Some of the parts within the machine, like the waveguide and filament material, require temperatures within .5 degrees Celsius. The solution to this is to install a liquid cooling system as the best option. In an IMRT system, the cooling path can be complicated. The water starts by cooling the charging drawer and oil pump. It then leads to the liquid cooling system that will decrease the temperature of the entire system, including the linear accelerator.

Types of Liquid Cooling

Liquid cooling systems are ideal for temperature control and stabilizing. They are designed to remove large amounts of heat that is generated in a densely packed electronic environment of a linear accelerator. It may cause concern that liquid coolant is so near all these electrical products but if the cooling system is designed and assembled correctly, there should be no issues. A few reasons these systems are more beneficial opposed to air-based heat exchangers is the ability to provide faster cooling, runs more quietly, and is more reliable with less downtime. Three options for cooling systems are:

  1. Liquid – Air Heat Transfer Configuration – a high-pressure pump that recirculates the liquid coolant and an air heat exchanger to remove heat in the liquid system
  2. Liquid – Liquid Configuration – the pump recirculates the coolant and the facility water is used for a liquid heat exchanger to remove heat from the higher temperature side
  3. Compressor – Based Chiller System – the pump recirculates coolant that is chilled to well below standard temperature

Radparts is the world’s largest independent distributor of OEM replacement parts for Linear Accelerators and Radiation Oncology equipment.  Radparts provides high quality, user-friendly, low-cost parts and support for linear accelerators and radiation equipment. More information can be found at https://www.radparts.com/.



Why Buying a Refurbished Linac Makes Sense for a Clinic

When deciding to add or upgrade a facility’s medical linear accelerator (Linac) many factors need to be thoroughly examined such as budget, location, time frames, and other personal impacts. One major decision to make is if to purchase a new or used/refurbished Linac and determining which will offer the best benefits long term. Depending on your situation sometimes a new Linac is required but most often a refurbished option will work perfectly, allowing you to save money as well. Below, are a few reasons to choose a refurbished linear accelerator for your next purchase.

Fewer Patients Being Treated

If your company is new or smaller in size, purchasing a refurbished Linac could be very beneficial. Pre-owned or refurbished Linac’s cost less and have lower monthly lease payments than choosing new equipment. Having fewer than 8 to 10 patients a day is generally considered a small medical facility. With fewer patients equals less money to help cover the costs of equipment fees so taking it low and slow maybe a better business option to guarantee that your clinic continues to grow at a steady pace, allowing quality and effective treatments for all patients. Veterinarian clinics or research facilities may also benefit from a refurbished Linac as they generally do not require all the advanced technologies provided in newer models. The use of linear accelerators may not always be for medical use; instead for industrial uses to image materials.

 Operating with Only One Linac or Want a Backup

Often a dilemma will arise when a company is moving into a new location and cannot afford to have a machine down during the relocation process, which can take about 3 to 4 weeks for the transition. An option to avoid this situation is to purchase a refurbished replacement that is like the existing equipment and have it installed in the new location. Once the new facility is complete and open for business, the patients can receive treatment with the newly refurbished equipment and you can either keep the original linear accelerator as a backup or sell it. This solution prevents companies from losing patients from a lack of available machines.

Other Factors to Consider in Budget

Purchasing a used or new linear accelerator is only the first step in getting the proper equipment setup for your business. Other services that should be researched with your Linac is the warranty, service and maintenance plans. This information will help you decipher which options are best for your facility and meet your needs. Also, remember to consider the costs of equipment removal and disposal. The purchasing and planning process of linacs can be very overwhelming which is why choosing the right company for the job is key for a successful addition/upgrade to your facility.

Radparts is the world’s largest independent distributor of OEM replacement parts for Linear Accelerators and Radiation Oncology equipment.  Radparts provides high quality, user friendly, low cost parts and support for linear accelerators and radiation equipment. More information can be found at https://www.radparts.com/.

Knowing the Ins and Outs of Linac Repairs Part 1


Understanding the complexities of linear accelerators can be rather difficult since these machines are such large, expensive machines. A linear accelerator operates by delivering external beam radiation treatments to patients fighting cancer, but they also include additional imaging systems that are attached such as portal dosimetry or onboard imaging which too add to the complexity. Due to such precise functionality of such a variety of parts inside the unit, it is crucial for any clinic to have the proper expertise on-site to work on these machines and know exactly what these systems do.

The Importance Of Treatments

Investing in proper expertise is a very serious matter for the oncology department to consider due to the fact that patients receiving the treatment must continue a regular schedule with as little amount of downtime as possible because of the cumulative effect that radiation has on the cancer cells and if treatment is stopped, the entire treatment process will have to be restarted all over again.

In-Depth Training

A clinical engineer not only needs to know how to complete a repair on a broken or damaged part of a linear accelerator but needs to understand the actual process of how the equipment is designed to work during treatments. Troubleshooting can be very difficult if not familiar with the problem that is being described by the clinic operators. It is part of the technician’s job to be able to translate what an issue could be related to a piece of software or hardware component. Developing this skill set and the understanding of linear accelerators takes a great deal of time and not always be taught in just a few sessions of training during a treatment occurring. Training alone is not effective enough when needing technicians to perform repairs at clinics. Vendor service schools can range anywhere from $20,000 to $30,000 or even possibly higher depend on the level of expertise. The portion for training on linac is roughly 6 weeks of school during a 2-year period however additional schooling can be done for onboard imaging as well. The entire process could take 3 to 4 years to complete which will include hands-on experience.

Finding The Right Time for Repairs

Linac parts are regularly checked during preventative maintenance visits which are generally recommended by the manufacturer to occur 3 to 4 times each year. Each maintenance visit requires detailed checklists and the individualized machines also have onboard alert systems programmed to shut off a device if a problem is found to prevent safety concerns. The most difficult question that needs to be solved is when can time be taken to actual repair the Linac equipment? In many facilities, patients are scheduled every 15 minutes throughout an 8-hour period, 5 days a week. With the importance of continuing treatments for a clinic’s patients, downtime is the worst part of the day. If possible, a technician will bypass the issue and continue limping along, treating patients when possible. Much service work is then performed after hours or on nights/ weekends. Some clinics choose to have a backup machine when these instances occur and one needs repair but this adds on additional costs and still extended hours added to a facility.

Radparts is the world’s largest independent distributor of OEM replacement parts for Linear Accelerators and Radiation Oncology equipment.  Radparts provides high quality, user friendly, low cost parts and support for linear accelerators and radiation equipment. More information can be found at https://www.radparts.com/.



LINAC Removal and Disposal Service

Out with the old and in with the new as people always say. Replacing your radiation equipment is a must in the cancer treatment world to better provide quality and efficient services to cancer patients worldwide. If repairs to linear accelerators exceeds the value of the machines, it is best to begin looking at buying a new or refurbished linear accelerator to replace it. The removal of your equipment is no easy task and should consult the professionals that are experienced in this process to comply with state regulations, liability and safety concerns, and to ensure it is done properly so that you do not spend additional money to get services done multiple times.

Preventing Prolonged Downtime

With every linear accelerator replacement or removal, a clinic will expect to have treatment for their clinics to be suspended. This delay can be very difficult and dangerous for many cancer patients due to the nature of the sickness. Radiation therapy destroys the DNA of cancerous cells much faster than healthy cells which is a large advantage in cancer treatment. Healthy cells recover from radiation quicker sometimes even by the next days treatment while the cancer cells continue to become weaker. Interruptions to this treatment schedule will allow cancer cells to grow back and gain strength so down time is not really an option for many of people. Having to travel to a new hospital for treatment is not ideal so many clinics may try to have a second machine that can be of use, but this too can be an expensive alternative for the companies.

Moving the Linear Accelerator Equipment

The process of moving a linear accelerator to a new location or for disposal can be quite a large task and by large they estimate roughly 25,000 pounds that stand over 8 feet high. Despite their massive size, they are very fragile and must be moved properly and with most care which can take extensive amount of time anywhere from 4 to 8 weeks even. Depending on the type of linac being removed, concrete floors or walls may have to be broken around the base frame so that future construction for renovations can be completed.

Purchasing Refurbished Equipment Vs New

When ready to purchase a replacement linear accelerator there are a few options to consider since this is a big financial decision. A new linear accelerator on average can cost $2,928,771. Purchasing a refurbished linear accelerator is considerably less in comparison. A refurbished or used linear accelerator does not mean that it is old or outdated technology. Many newer style oncology equipment can be found on used product market. Buyers can purchase the latest technology at a more affordable price with refurbished. Another advantage, many of the machines are upgraded frequently with platforms designed for the used systems.

Radparts is the world’s largest independent distributor of OEM replacement parts for Linear Accelerators and Radiation Oncology equipment.  Radparts provides high quality, user friendly, low cost parts and support for linear accelerators and radiation equipment. More information can be found at https://www.radparts.com/.



Pre-planning Linac Maintenance

Medical linear accelerators have continued to make progress through history since the late 1950’s and pave new ways for curing a variety of different cancers that once were not an option to treat. The design of the equipment combines the use of hardware and software that together gives the advantage of precision and overall success of today’s cancer treatment worldwide. Manufacturing and design continue to evolve and become a better tool for future use in reliability and efficiency but as with all mechanical systems, dysfunction and failures still exist. Having unplanned accelerator downtime and failures can impact a company and its patients very negatively. The scheduled treatments need to be performed at precise times given by the cancer specialists for an effective procedure while fighting against cancer. To avoid these situations from occurring, proper testing and maintenance of the radiology equipment must be done.

Steps During Maintenance

  1. Deliver a daily quality assurance (QA) treatment
  2. Automatically move and examine the log files that are created
  3. Create baselines, then perform daily operating and performance values to statistical process control (SPC) for examination
  4. Investigate if any alarms have been activated
  5. Inform the facility and system service engineers

Trained Professionals

Medical physicists will typically receive basic training of the principals of linear accelerators functionality, but much hands-on experience will be lacking since there is a limited access to linacs that’s are in clinical use but more importantly because these devices can only be adjusted with small set of parameters to maintain. For actual technicians, training for service personnel is generally one of the largest components to a person early on in employment. The process can be lengthy and costly and require unique training from the manufacturer of linear accelerator company.

Scheduled Maintenance and Repairs

Typically, Linac machines will be under an annual service contract that will provide scheduled, preventative maintenance throughout the year to keep the radiotherapy machines running optimally. Keep in mind, older equipment may reach their “end of life” period and may no longer be supported or even worse parts can become sparse or unavailable which may be a reason to start to look for replacement linear accelerators. Extending the life of your current systems with upgrades will be the most cost-effective option for your business. By repairing or upgrading the system this will also not only save money but save precious down time that will need to be taken if having to remove and install new equipment is needed. Not having a machine functioning will mean no treatments being performed which could cost you losing valuable patients.

Radparts is the world’s largest independent distributor of OEM replacement parts for Linear Accelerators and Radiation Oncology equipment.  Radparts provides high quality, user friendly, low cost parts and support for linear accelerators and radiation equipment. More information can be found at https://www.radparts.com/.