Ct dose reduction software

A ct scan uses xrays to create crosssectional pictures of the body. This software collects radiation dose data1 directly from your ge healthcare. Results from the german concerted action dose reduction in ct proceedings 5 years of concerted action dose reduction in ct what has been achieved and what remains to be done. Iterative reconstruction techniques cut ct dose diagnostic. December 14, 2011 toshiba america medical systems inc. Pixelshine provides patientsafe, high quality ct scans by denoising noisy ct scans acquired using low radiation dose. Mita has set guidelines through its ct dose check initiative for developing better dosemanagement techniques. Elizabeth healthcare first to install aidr 3d ct dose. Reduction dose reduction aidr 3d aidr 3d key features integrated integrated when aidr 3d is used in a protocol, sureexposure automatically lowers the tube current prior to imaging the patient adjusting for the expected noise reduction from aidr 3d. What radiologists can anticipate in dose reduction in the coming years. Radiation dose management in ct, spectct and petct techniques. Substantial ct dose reduction by denoising images using deep learning technology, pixelshine empowers you to acquire high quality ct scans using substantially lower radiation.

Radiation dose management in ct, spectct and petct. Ct dose parameters and dose reductions siemens healthineers usa. Impact of new technologies on dose reduction in ct. This compensation maximizes the dosereduction potential of all three methods. Dosemanagement strategies for pediatric ct, cardiac ct, dualenergy ct, ct perfusion and interventional ct are specifically discussed, and. International variation in radiation dose for computed. If you continue browsing the site, you agree to the use of cookies on this website. Our two 64 slice ct scanners are equipped with the latest radiation dose reduction software adaptive statistical iterative reconstruction or asir and smart ma, which combine to reduce radiation dose and improve the quality of images.

Jun 28, 2010 the act of dose lowering leads to more noisy images, and hence, makes diagnosis of subtle and notsosubtle pathology more difficult. Under images as dosage information key benefits enables reduction of radiation dose by 20 80% depending on anatomy adheres to the alara principle as low radiation dose as reasonably achievable without. All ct acquisition protocols must be examined and revised to focus on radiation reduction. This advanced noise and object modeling reconstruction software allows you to consistently image with up to 82 percent 4 less dose compared to filtered back projection image reconstruction. Our metal artifact correction technology uses an automated, threestage projection based process to help improve the quality of ct data within the projection space, rather than in image space. Ges asir cuts ct dose a type of iterative reconstruction may reduce patient radiation dose from ct scans up to 65%, according to a study published in the september issue of the american journal of roentgenology. May 31, 2016 the ucsf virtual symposium on radiation safety in ct, provides a wealth of information and new perspectives on the topic of radiation safety in ct. Validation of ct dosereduction simulation request pdf. Software to help manage medical imaging radiation dose. Adaptive statistical iterative reconstruction asir, a reconstruction engine that sweeps noise from ct images, allows radiologists to cut dose by up to 66% in abdominal scans with no change in spatial or temporal resolution, according to dr. Akin, md, george washington university medical center, washington, dc drew a. However, experts caution imaging departments to be aware that equipment and software are not the sole components for successful dose reduction programs. Although there is some variation in the dose reduction seen with each of the vendors systems, aec software can reduce radiation dose by up to 40% to 50% 2, 3. Quickly communicate radiation dose information to patients with printouts available after exam procedure completion.

Aidr 3d provides significant dose reduction in ct imaging for better. Dose reduction and management by dave yeager radiology today vol. Dosewatch explore is a webbased, cloud deployed, introductory dose management software to track, analyze and report practicelevel data for ge healthcare ct systems. Adaptive statistical iterative reconstruction use for radiation dose. July 10, 2012 in ct computed tomography imaging, healthcare facilities strive to limit patient radiation dose while maintaining high image quality for accurate diagnoses. This is the most comprehensive approach to ct dose reduction because the xray dose is adjusted according to the patientspecific attenuation in all three planes. Considering that iterative reconstruction alone can result in patient dose reductions in the 3080% range, it should be an important part of any overall ct radiation dose reduction program. Discussion on ct dose reduction imaging technology news.

Dedicated, committed and focused leadership all members of the organization need to agree that ct dose reduction is a major goal. Corresponding with its greater use and growing breadth of applications, however, have been increasing concerns over patient safety due to radiation exposure. Dose optimization strategies routine head ct protocols. In 1981, haaga et al, 14 published the concept of using tube current variation to reduce the radiation dose while maintaining image quality.

The clarity algorithm reconstructs an optimized ct volume from any low quality input volume. Strategies for radiation dose reduction in nuclear cardiology and cardiac computed tomography imaging. May 22, 2009 software that improves image quality is on track to be a champion of ct dose reduction now and in the future. Comprehensive ct dose management implementation requires. The technique, called adaptive statistical iterative reconstruction asir by its developer, ge healthcare, reduces noise in the image, allowing a downward adjustment in radiation dose to obtain standard diagnostic quality images. Clarity ct solution provides image optimization and enables lower radiation dose protocols while maintaining image quality. Once you have the system automated, it will not be difficult to adjust thresholds in the software as guidelines evolve. Adaptive iterative dose reduction is software that iterates noise out of the image to increase image quality and lower radiation dose. In this video i will describe how our ct scanners use the software sure exposure 3d to reduce the radiation dosage during an exam. Toshibas ct radiation dose reduction technologies help physicians provide safer exams for patients technologies showcased at rsna extend the ability of toshiba ct systems to lower radiation dose. In the past ctdi 100 measured over a 100 mm long ionization chamber and ctdi w weighted average of dose across a single slice were used. Proceedings contribution significance of overbeaming and overranging effects of single and multislice ct scanners. The introduction of mdct has increased the utilization of ct in pediatric radiology along with concerns for radiation sequelae. Some perspectives on future ct dosereduction techniques are presented.

This was the underlying principle for the development of adaptive iterative dose reduction 3d aidr 3d. Rotational aec allows modulation for each rotation as needed, effectively using only the dose needed at the time. But from the moment you walk past the bright yellow and black warning sign on the door and enter the ct room, youll probably be thinking about. Dose reduction strategy for customers particular ct 4.

Arab health annual meeting, ct dose monitoring is important, and we have access to automated dosemonitoring software, he said. Adaptive statistical iterative reconstruction asir is a software package that allows your radiology team to reduce your exposure to radiation without sacrificing quality in a computed tomography ct scan. Toshiba ct dosereduction software enables less radiation on all. Sapheneia clarity algorithm for ct dose reduction sapheneia uses the proprietary clarity algorithm featuring an iterative adaptive filtering technique in image space. With this introductory offering you can start to make initial improvements around dose management to help drive changes in your organization that may help improve patient care with respect to radiation doses. How aec results in dose reduction our rental, service and parts teams are available to serve urgent needs during the covid19 outbreak. Ct dose reduction is booming imaging technology news.

Typically, if one of these parameters is decreased, another needs to be increased to maintain image quality. Chapter 2 focuses on information regarding radiation dose and biologic risks associated with exposure to ionizing radiation during ct examinations that can be used to educate referring physicians, patients, caregivers, and the public about radiation exposure in ct examinations. All ucsf ct scanners are equipped with the latest generation automatic dose modulation software that reduces the radiation dose to various body parts during a scan. Care right committed to the right dose in ct siemens. Software to help manage medical imaging radiation dose sectras dose monitoring software showing a comparison between the performance of an old and a replaced scanner. Strategies for radiation dose reduction in nuclear cardiology. Medical technology asir ct dose reduction vidant health. Results can be achieved in real time without any temporal blurring. Ct manufacturers are introducing dose check as part of a software upgrade, which allows ct users to set a maximum ctdi vol value for each ct protocol and to alert the user when any change in scan parameters are chosen that can lead to values higher than the limit.

Now help your surgeons plan complex cases with 3d extremity low dose ct performed inhouseinstead of xrays. Optimizing oncologic fdgpetct scans to decrease radiation. Approaches to dose reduction in computed tomography. Siemens software and hardware solutions to reduce dose in ct. A type of iterative reconstruction may reduce patient radiation dose from ct scans up to 65%, according to a study published in the september issue of the american journal of roentgenology. Lowdose computed tomography for the optimization of. The following test method was used to determine a 54 to 60% dose reduction when using the safire reconstruction software.

The technique is a noise reduction computer algorithm that is applied to the raw projection data, unlike other noise reduction techniques that operate on the reconstructed ct images. The setting of ct parameters such as tube current, tube rotation time, peak voltage, pitch, and collimation is a major contributor to the radiation dose received during a ct study. After the indication, the second most important step towards managing radiation dose is recognition of the fact that children are more vulnerable to the risk of. Staff presentation siemens software and hardware solutions to reduce dose in ct. Traci says her patients are often surprised with how quickly their ct scan is finished sometimes in just a few minutes. Chapter 3 covers dose reduction techniques such as automatic. The aquilion ct design focuses on the second method. Sectra comparison showing the dose performance of several ct scanners for the same procedure. Sample mgh 64slice head ct protocol minor variations between scanners helical, 120kv, 250ma, pitch 0. Radiation dosereduction strategies for neuroradiology ct. This solution is also very effective in refurbished ct scanners.

Available tools on the latest generation of ct scanners. This software collects radiation dose data 1 directly from your ge healthcare ct scanner, then summarizes and presents the data via a. Some of the reduction stratgies are using techniques like. Organizations should start developing dose reduction programs, capturing the dose on pacs and then creating procedures to build the program. This principle states that only the minimum amount of radiation necessary to accomplish the diagnostic task at hand should be used in order to keep patient risk as low as reasonably possible alara. Thus dose reduction is achieved without the need to. Lowdose ct in the abdomen and pelvis is challenging due to similar densities of adjacent structures and little difference between the attenuations of normal and pathological processes that can be easily obscured by increased image noise in the lowdose setting. Dose reduction computed tomography ct scanners canon.

Reassure patients that radiation dose is monitored internally while improving your brand. Toshiba aquilion ct dose management tools agenda aquilion family of ct scanners dose safeguards. Together, they allow from 50 to 80 percent reduction in patient radiation dose. In recent years, vendors have turned their attention to developing technology to drastically reduce dose. Reducing radiation exposure is only half of the problem. National jewish health established a radiation dose reduction task force in 2009. Our software enables 4050 percent dose reduction in both ct and interventional radiology, while still maintaining diagnostic imaging quality. Ct radiation dose information what to capture and how. Virtualdosect radiation exposure dose software virtualdose.

You cant see it or feel it, so it can be easy to forget about radiation. Several examples of recently published lower dose ct protocols are investigated in detail. Reducing and tracking radiation dose has become an area of emphasis in radiology, but performing those tasks efficiently can be challenging. This software collects radiation dose data 1 directly from your ge healthcare ct scanner, then summarizes and presents the data via a web application. Elizabeth healthcare first to install aidr 3d ct dose reduction. The ct machine has software called care dose which fluctuates the radiation dose youre getting based on your body size and density. Our leading dose reduction software, asirv, is also available. Noise, ct numbers, homogeneity, lowcontrast resolution and high contrast resolution were assessed in a. Radiology today interview with ascendian healthcare. Jul 10, 2012 july 10, 2012 in ct computed tomography imaging, healthcare facilities strive to limit patient radiation dose while maintaining high image quality for accurate diagnoses. Each of the major players in ct has a proprietary name for their aec package. Understand the data and analytics so you can reduce unnecessary radiation by.

The ucsf virtual symposium on radiation safety in ct, provides a wealth of information and new perspectives on the topic of radiation safety in. A ct or cat scan is a shortened name for computerized axial tomography. Dose reduction with iterative reconstruction for coronary ct angiography. Latest ct technology for automatic radiation dose reduction. Rather, hospitals and health networks must reevaluate their own protocols, educate their medical staff, take the time to reach out to the community, and give special attention to data analysis. Preset in ct protocol aidr 3d dose reduction adaptive personalized dose reduction. Together, these core technologies provide you with everything you need to get the right. Table 2 computed tomography ct effective radiation doses and proportion of high dose examinations by institution and machine characteristics, adjusted for patient age, sex, and size. Introducing the carestream onsight 3d extremity system with optional advanced metal artifact reduction. Patientspecific monte carlo simulation software packages have been developed.

Each ct solution includes the six step comprehensive dose strategy cds which is the most cost effective and simple system to meet your dose management needs. This projection space correction leads to images that are consistent with the. Furthermore, siemens training helps to educate on the most efficient use of our dose reduction technologies. Canon medical systems has always shared these concerns and has been actively involved in introducing automated, easy ct dosesaving tools for decades based on the alara principle.

The software is capable of reconstructing raw projection data of helical ct scans. Scanner manufacturers have subsequently implemented several options to appropriately manage or reduce the radiation dose from ct. Dose reduction and management radiology today magazine. Torigian, md, ma, university of pennsylvania medical center, philadelphia, pa patrick m. The principle of ecgbased ma modulation is illustrated by figure 4. The ability to rapidly deliver highresolution images has made ct a core imaging modality across healthcare today. She tells patients that over the years, technology has gotten very good. Remember that a ct is basically shooting a lot of xrays at different angles along a length of the body. The percent dose reduction using ecgbased tube current modulation is higher for patients with slow heart rates compared to those with high heart rates, as the maximum ma time period is. These technologies utilize reconstruction software, which allows for dose reduction on all types of scans performed about a 20% dose reduction for head ct. How do i get the lowest ct radiation dose possible.

Getting back to dose energy deposited in a given mass of tissue we need to figure out how to measure it in ct. Asir ct dose reduction what is asir ct dose reduction. In amys case, the doses are from published ct dose data only. Ct radiation dose and iterative reconstruction techniques. In addition, suggested guidelines for dose reduction have come from the joint commission, the image wisely. Oct 15, 2015 a closer look at how aec dose reduction for ct scanners works and how to identify it by proprietary names from major manufacturers. Our objective in this article is to educate users of ct scanners about the dose management and dose reduction tools available with current ct systems. Toshiba ct dosereduction software enables less radiation on all exams.

New software helps manage ct radiation dose imaging. Ct scan technique for dose reduction iterative algorithm ct scan technology slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Dose variation in head ct was more modest, with a relative mean dose between the highest dose and lowest dose countries of 1. In order to measure dose in ct, the ct dose index ctdi was. Lowdose ct lends itself well to thoracic imaging, partly due to the high inherent tissue contrast in the lungs.

In this work, the software has been described and evaluated by. Overview of dose reduction techniques and methods 3. Find out more about our long legacy in dose reduction. Rather than increase scanner power and xray tube output to maximize signal, aquilion ct minimizes noise to allow for dose reduction. Radiation safety, ct dose optimization and safe procedures. So, the first step on dose reduction starts with the radiology department educating their physicians about appropriateness of the exam. This article summarizes the general technical strategies that are commonly used for radiation dose management in ct. Radiation safety, ct dose optimization and safe procedures for ct. Consequently, the effective doses we present are, in timothys case, based on published ct dose data adjusted for irradiated length, patient age, tube current reduction recommended by image gently, and effective dose per doselength product 2123. An example of radiation dose monitoring software from sectra, which offers robust analytics to look at dose by modlaity, exam type, specific.

The percent dose reduction using ecgbased tube current modulation is higher for patients with slow heart rates compared to those with high heart rates, as the maximum ma time period is a smaller percentage of the rr time interval at low heart rate. Changes to protocols for radiation dose reduction in ct include reducing tube voltage, tube current, or both, while using improved image reconstruction software algorithms to maintain sufficient image quality. Optimizing oncologic fdg petct scans to decrease radiation exposure. Software to help manage medical imaging radiation dose new requirements from cms, the joint commission and some states now require recording and monitoring of dose from cardiovascular imaging sectras dose monitoring software showing a comparison between the performance of an old and a replaced scanner. Ecgbased tube current modulation is an important dose reduction tool in cardiac ct 37, 77. This software tailors the amount of radiation output depending on the body part being imaged and the size of the individual. Our equipment and software are uniquely designed to optimize outcomes for diagnosis and intervention while reducing radiation exposure for patients and physicians. Integrated into sure exposure3d settings, this iterative algorithm removes noise in the raw and image data space, by analyzing and processing the data repeatedly. The act of doselowering leads to more noisy images, and hence, makes diagnosis of subtle and notsosubtle pathology more difficult. Aidr 3d, adaptive iterative dose reduction, is designed to lower radiation dose and maximize image quality all with accelerated workflow.