Mammography-Chapter 8
... Targets used in combination with specific tube filters to achieve optimal energy spectra ...
... Targets used in combination with specific tube filters to achieve optimal energy spectra ...
An X-ray Source Model and Characterization Method for Computing
... options for cancer are radiation therapy, surgery, and chemotherapy. Two-thirds of all cancer patients will receive radiation therapy[8], making radiation therapy, usually delivered by a linear accelerator (linac) one of the mainstays of cancer treatments. Studies estimate that of the ∼9% of radiati ...
... options for cancer are radiation therapy, surgery, and chemotherapy. Two-thirds of all cancer patients will receive radiation therapy[8], making radiation therapy, usually delivered by a linear accelerator (linac) one of the mainstays of cancer treatments. Studies estimate that of the ∼9% of radiati ...
Full Text - Diagnostic and Interventional Radiology
... Technical performance parameters were assessed for each needle placement individually and included the number of control MR images and adjustments that were needed for advancing the needle to the target location, the target error of the final needle tip location, puncture of critical nontargeted str ...
... Technical performance parameters were assessed for each needle placement individually and included the number of control MR images and adjustments that were needed for advancing the needle to the target location, the target error of the final needle tip location, puncture of critical nontargeted str ...
radiation protection in diagnostic radiology - RPOP
... results in lower doses • X Ray rooms for pediatrics should be designed for improving the child’s cooperation (control panel within easy reach, etc.) • Fast screen-film combinations or digital radiography have advantages (reduction of dose) and limitations • Low-absorbing materials in cassettes, tabl ...
... results in lower doses • X Ray rooms for pediatrics should be designed for improving the child’s cooperation (control panel within easy reach, etc.) • Fast screen-film combinations or digital radiography have advantages (reduction of dose) and limitations • Low-absorbing materials in cassettes, tabl ...
MD Expo
... Does the safety culture in your organization encourage staff and medical staff to identify system and process problems so they can be addressed quickly or do you wait until something happens or a surveyor finds it? When you develop your ESC do you find a way to incorporate it into daily activiti ...
... Does the safety culture in your organization encourage staff and medical staff to identify system and process problems so they can be addressed quickly or do you wait until something happens or a surveyor finds it? When you develop your ESC do you find a way to incorporate it into daily activiti ...
Multidetector CT-generated virtual bronchoscopy: an illustrated review
... with the posterior side at 12 o9clock, the left side at 3 o9clock, the anterior side at 6 o9clock and the right side at 9 o9clock. The VB films of each patient were studied together with the regular axial CT images and when possible reconstructions in other imaging planes were also performed. VB was ...
... with the posterior side at 12 o9clock, the left side at 3 o9clock, the anterior side at 6 o9clock and the right side at 9 o9clock. The VB films of each patient were studied together with the regular axial CT images and when possible reconstructions in other imaging planes were also performed. VB was ...
Evaluation of phantoms used in image quality performance testing of
... Cone beam computed tomography (CBCT) units dedicated for dental and maxillofacial imaging have gained widespread use in recent years. So far there are no standardized testing methods to evaluate the image quality or the dose on these units. Although the vendors commonly provide an image quality phan ...
... Cone beam computed tomography (CBCT) units dedicated for dental and maxillofacial imaging have gained widespread use in recent years. So far there are no standardized testing methods to evaluate the image quality or the dose on these units. Although the vendors commonly provide an image quality phan ...
Quality control guidance for nuclear medicine equipment
... requires in addition to technical quality control, an assessment of both the patient radiation exposure and diagnostic image quality. The patient’s radiation exposure is linearly comparable to the activity of the radionuclide administered. This means that in optimization an adequate image quality is ...
... requires in addition to technical quality control, an assessment of both the patient radiation exposure and diagnostic image quality. The patient’s radiation exposure is linearly comparable to the activity of the radionuclide administered. This means that in optimization an adequate image quality is ...
ACR Appropriateness Criteria Radiographically 10
... 100%, respectively. FDG-PET has a higher specificity and only slightly reduced sensitivity compared with noduleenhancement CT.22 Limitations of PET scanning include its inability to accurately characterize certain types of lesions, including low-grade adenocarcinoma and typical carcinoid tumors. It i ...
... 100%, respectively. FDG-PET has a higher specificity and only slightly reduced sensitivity compared with noduleenhancement CT.22 Limitations of PET scanning include its inability to accurately characterize certain types of lesions, including low-grade adenocarcinoma and typical carcinoid tumors. It i ...
12 Dynamic Contrast-Enhanced MRI of Prostate Cancer
... incidence have been reported in recent years around the world, some of which can be attributed to frequent use of transurethral resection of the prostate (TURP) to treat symptoms of obstructive benign prostatic hyperplasia (BPH) and serum prostatespecific antigen (PSA) testing to screen for prostate ...
... incidence have been reported in recent years around the world, some of which can be attributed to frequent use of transurethral resection of the prostate (TURP) to treat symptoms of obstructive benign prostatic hyperplasia (BPH) and serum prostatespecific antigen (PSA) testing to screen for prostate ...
chapter 221. x-rays in the healing arts general provisions
... or technical nature into practical application for experimental and demonstration purposes, including the experimental testing of models, devices, equipment, materials and processes. The term includes the external administration of X-ray radiation to human beings for diagnostic or therapeutic purpos ...
... or technical nature into practical application for experimental and demonstration purposes, including the experimental testing of models, devices, equipment, materials and processes. The term includes the external administration of X-ray radiation to human beings for diagnostic or therapeutic purpos ...
True Aneurysm of a Dacron Tube Graft 19 Years After Repair of
... intramyocardial coronary segments trapped by contracting cardiac muscle has a benign course with a normal life expectancy, given that 85% of coronary blood ...
... intramyocardial coronary segments trapped by contracting cardiac muscle has a benign course with a normal life expectancy, given that 85% of coronary blood ...
Integrating a Community Hospital
... hospitals benefit from teleradiology, but this often requires advanced equipment, data-transfer capabilities, and imaging quality, particularly for specialist interpretation and expertise [2]. These factors must be considered at both institutions when merging radiology departments. Decisions regardin ...
... hospitals benefit from teleradiology, but this often requires advanced equipment, data-transfer capabilities, and imaging quality, particularly for specialist interpretation and expertise [2]. These factors must be considered at both institutions when merging radiology departments. Decisions regardin ...
Real-Time Ultrasound Elastographic Imaging of Ocular and
... [Ophthalmic Surg Lasers Imaging 2010;41:135-141.] mal and suspicious tissues is available from magnetic resonance imaging segmentation.3 In the latter method, the footprint of the ultrasound probe is used to compress the tissues axially and tissue axial displacements are estimated with cross-correla ...
... [Ophthalmic Surg Lasers Imaging 2010;41:135-141.] mal and suspicious tissues is available from magnetic resonance imaging segmentation.3 In the latter method, the footprint of the ultrasound probe is used to compress the tissues axially and tissue axial displacements are estimated with cross-correla ...
relationship between lymphoscintigraphy and clinical findings in
... established as the most advanced method to assess the limb lymphatic system particularly in lymphedemas (LE). As a safe, non-invasive and physiological method, RNL is giving either morphological or objective functional information useful to clinical lymphologists (2,3). However, these results are no ...
... established as the most advanced method to assess the limb lymphatic system particularly in lymphedemas (LE). As a safe, non-invasive and physiological method, RNL is giving either morphological or objective functional information useful to clinical lymphologists (2,3). However, these results are no ...
Does Iterative Reconstruction Improve Image Quality and Reduce
... databases, as well as various well-known journals such as the American Journal of Roentgenology, European Journal of Radiology, Physica Medica and the Korean Journal of Radiology. A total of 57 articles were categorized as either synopsis articles or performance evaluation clinical studies, where th ...
... databases, as well as various well-known journals such as the American Journal of Roentgenology, European Journal of Radiology, Physica Medica and the Korean Journal of Radiology. A total of 57 articles were categorized as either synopsis articles or performance evaluation clinical studies, where th ...
American Association of Physicists in Medicine 40th Annual
... On behalf of the individuals listed above, I would like to thank all of those responsible for organizing the 1998 AAPM Annual Meeting. The success of the meeting is a result of the untiring efforts and voluntary time contributed by many AAPM Members. This is a landmark year for the Annual Meeting fo ...
... On behalf of the individuals listed above, I would like to thank all of those responsible for organizing the 1998 AAPM Annual Meeting. The success of the meeting is a result of the untiring efforts and voluntary time contributed by many AAPM Members. This is a landmark year for the Annual Meeting fo ...
Non-invasive imaging techniques in assessing
... Journal of Medicine and Life Vol. 10, Issue 1, January-March 2017, pp.19-26 ...
... Journal of Medicine and Life Vol. 10, Issue 1, January-March 2017, pp.19-26 ...
Coronary Computed Tomography Angiography
... temporal resolution and increased detector row width have allowed the evaluation of myocardial CT perfusion (CTP) with CCTA for simultaneous anatomical and functional assessment of CAD in a single examination [53]. Moreover, the increased spatial resolution along with the shorter acquisition time ma ...
... temporal resolution and increased detector row width have allowed the evaluation of myocardial CT perfusion (CTP) with CCTA for simultaneous anatomical and functional assessment of CAD in a single examination [53]. Moreover, the increased spatial resolution along with the shorter acquisition time ma ...
A review of the dedicated studies to breast cancer diagnosis by
... using thermometers [8]. Carl Wundelich in 1868 for the first time, studied temperature of fever sufferers and healthy subjects and stated that temperature is a scientific criteria of disease. He showed that the normal body temperature is between 36.3°C to 37.5°C and the temperatures out of this rang ...
... using thermometers [8]. Carl Wundelich in 1868 for the first time, studied temperature of fever sufferers and healthy subjects and stated that temperature is a scientific criteria of disease. He showed that the normal body temperature is between 36.3°C to 37.5°C and the temperatures out of this rang ...
European Journal of Medical Physics
... Background: Currently, treatment plans are generated by dosimetrists using a trial-and-error procedure. The process may take several hours and plan quality is dependent on the skills and experience of the dosimetrist, and on allotted time. We have developed and clinically introduced a system for ful ...
... Background: Currently, treatment plans are generated by dosimetrists using a trial-and-error procedure. The process may take several hours and plan quality is dependent on the skills and experience of the dosimetrist, and on allotted time. We have developed and clinically introduced a system for ful ...
Dental Regulatory Guide - Minnesota Department of Health
... ensure the continued safe use of x-ray equipment at intervals not to exceed 12 months. An audit is a review of your established radiation safety/quality assurance policies, procedures, and their implementation to ensure the safe operation of the x-ray equipment, protection of staff and the public, a ...
... ensure the continued safe use of x-ray equipment at intervals not to exceed 12 months. An audit is a review of your established radiation safety/quality assurance policies, procedures, and their implementation to ensure the safe operation of the x-ray equipment, protection of staff and the public, a ...
Moving Beam Helical CT Scanning
... from these sets are interpolated or weighted to compensate for the patient translation that has occurred during data acquisition. Crawford and King concluded that one rotation is optimum when one considers streak artifacts, partial volume artifacts and noise [3]. They concluded that the underscan (U ...
... from these sets are interpolated or weighted to compensate for the patient translation that has occurred during data acquisition. Crawford and King concluded that one rotation is optimum when one considers streak artifacts, partial volume artifacts and noise [3]. They concluded that the underscan (U ...
Assessment of Lipiodol Deposition and Residual
... ensure consistency, all measurements were performed three times at different image levels and average values were calculated. For all measurements, the size, shape and position of the ROIs were kept consistent between the two phases by applying the copy-and-paste function. The spectral CT imaging st ...
... ensure consistency, all measurements were performed three times at different image levels and average values were calculated. For all measurements, the size, shape and position of the ROIs were kept consistent between the two phases by applying the copy-and-paste function. The spectral CT imaging st ...