veno-lymphatic vascular malformations
... puncture venography were employed to better evaluate these postcapillary abnormal venous spaces (1–2). Currently, MR has proven to be the mainstay in initial diagnosis as well as to assess endovascular therapy at follow-up (3–6). Color Doppler imaging (CDI) is also assuming a large role in the initi ...
... puncture venography were employed to better evaluate these postcapillary abnormal venous spaces (1–2). Currently, MR has proven to be the mainstay in initial diagnosis as well as to assess endovascular therapy at follow-up (3–6). Color Doppler imaging (CDI) is also assuming a large role in the initi ...
Complementary Roles of Whole-Body Diffusion
... detection and staging in several major cancers is under active investigation (27–33). Because of its high lesionto-background contrast, the additional value of DWI is expected to lie in the detection of (small) lesions that remain unnoticed on anatomic-based imaging and on functional imaging techniq ...
... detection and staging in several major cancers is under active investigation (27–33). Because of its high lesionto-background contrast, the additional value of DWI is expected to lie in the detection of (small) lesions that remain unnoticed on anatomic-based imaging and on functional imaging techniq ...
Axially Extended-Volume C-Arm CT Using a Reverse Helical
... because it is difficult to perform a single scan that simultaneously provides information for trajectory calibration and tomographic data of the patient. C-arm CT usually performs trajectory calibration once and uses the calibrated trajectory in subsequent tomographic scans. Fourth, there is the iss ...
... because it is difficult to perform a single scan that simultaneously provides information for trajectory calibration and tomographic data of the patient. C-arm CT usually performs trajectory calibration once and uses the calibrated trajectory in subsequent tomographic scans. Fourth, there is the iss ...
Evaluation of the female urethra with intraurethral magnetic
... animal experiments have recently shown the potential for endourethral imaging of the sphincter (7). The purpose of this study was to evaluate a continent patient population to determine the anatomy of the normal female urethra as depicted using an endourethral MR coil and high-resolution MRI. Our hy ...
... animal experiments have recently shown the potential for endourethral imaging of the sphincter (7). The purpose of this study was to evaluate a continent patient population to determine the anatomy of the normal female urethra as depicted using an endourethral MR coil and high-resolution MRI. Our hy ...
handbook - Challenge TB
... the most common examination to be used as one of the initial steps to diagnose pulmonary disease including respiratory infection with tuberculosis (TB). The role of chest radiography for TB patients has gained increasing importance; especially as HIV associated TB and childhood TB are less likely to ...
... the most common examination to be used as one of the initial steps to diagnose pulmonary disease including respiratory infection with tuberculosis (TB). The role of chest radiography for TB patients has gained increasing importance; especially as HIV associated TB and childhood TB are less likely to ...
diagnostic imaging in the community
... As work increases in an X-ray department, it may seem a good principle to add more rooms in an existing hospital so as to group imaging facilities together. Although the equipment and trained staff are expensive, expansion is not always the best solution. From populations of the same size, there wil ...
... As work increases in an X-ray department, it may seem a good principle to add more rooms in an existing hospital so as to group imaging facilities together. Although the equipment and trained staff are expensive, expansion is not always the best solution. From populations of the same size, there wil ...
Positron emission tomographic imaging with 11C
... 11C-labeled choline (CHOL) for the differential diagnosis of malignant head and neck tumors from benign lesions as compared with 18F-fluorodeoxyglucose PET. Methods: We studied 45 patients (28 males, 17 females, age range, 29–84 years) with suspected lesions in the head and neck region using both CH ...
... 11C-labeled choline (CHOL) for the differential diagnosis of malignant head and neck tumors from benign lesions as compared with 18F-fluorodeoxyglucose PET. Methods: We studied 45 patients (28 males, 17 females, age range, 29–84 years) with suspected lesions in the head and neck region using both CH ...
Randomly Segmented Central k-Space Ordering in High
... k-space ordering is used in CENTRA (8). The technique samples central phase-encoding views during the early arterial phase; this has been shown to provide effective venous suppression (4). In elliptic centric view ordering, the samples in the phase-encoding directions ky and kz are reordered so that ...
... k-space ordering is used in CENTRA (8). The technique samples central phase-encoding views during the early arterial phase; this has been shown to provide effective venous suppression (4). In elliptic centric view ordering, the samples in the phase-encoding directions ky and kz are reordered so that ...
Sixty-Four-Section Multidetector CT Angiography of Carotid Arteries
... arteries compared with the region of interest placed over a branch of the intracranial circulation evaluated by the timing-bolus technique. Patients with impaired cardiac function, atrial fibrillation, or significant vascular stenoses will usually have longer time-to-peak arterial enhancement and th ...
... arteries compared with the region of interest placed over a branch of the intracranial circulation evaluated by the timing-bolus technique. Patients with impaired cardiac function, atrial fibrillation, or significant vascular stenoses will usually have longer time-to-peak arterial enhancement and th ...
Sixty-Four-Section Multidetector CT Angiography of Carotid Arteries
... arteries compared with the region of interest placed over a branch of the intracranial circulation evaluated by the timing-bolus technique. Patients with impaired cardiac function, atrial fibrillation, or significant vascular stenoses will usually have longer time-to-peak arterial enhancement and th ...
... arteries compared with the region of interest placed over a branch of the intracranial circulation evaluated by the timing-bolus technique. Patients with impaired cardiac function, atrial fibrillation, or significant vascular stenoses will usually have longer time-to-peak arterial enhancement and th ...
SCCT Guidelines for the Interpretation and Reporting of Coronary
... should be at the mean of the Hounsfield unit values within the region of interest, while the window width should be about 2.5 times the level. In standard examinations done at 120 kVp an initial window width of 800 and a level of 300 is a useful starting point, but the interpreter should make readju ...
... should be at the mean of the Hounsfield unit values within the region of interest, while the window width should be about 2.5 times the level. In standard examinations done at 120 kVp an initial window width of 800 and a level of 300 is a useful starting point, but the interpreter should make readju ...
Modeling blurring effects due to continuous gantry rotation
... concept, which models the angular integration due to the relative motion of the x-ray source during the projection. Results: Compared to conventional reconstruction from projections acquired with pulsed x-ray emission, the proposed method results in substantially improved reconstruction quality arou ...
... concept, which models the angular integration due to the relative motion of the x-ray source during the projection. Results: Compared to conventional reconstruction from projections acquired with pulsed x-ray emission, the proposed method results in substantially improved reconstruction quality arou ...
Contrast medium administration and image acquisition parameters
... for a shorter route to the superior vena cava via the brachiocephalic vein compared with the left side. Injection duration is defined as total CM volume divided by the injection rate (21). It affects both TTP and the extent of vascular enhancement. Longer injection durations (keeping the injection r ...
... for a shorter route to the superior vena cava via the brachiocephalic vein compared with the left side. Injection duration is defined as total CM volume divided by the injection rate (21). It affects both TTP and the extent of vascular enhancement. Longer injection durations (keeping the injection r ...
Annotations Part II Vertebral Fracture Initiative Slide 1 Slide 3
... • This particularly applies to lateral views in which the divergent X-ray beam, poor positioning or scoliosis may result in biconcave endplates which must not erroneously be interpreted as vertebral fractures. • In the breath-hold technique in the thoracic spine, rib margins may obscure vertebral en ...
... • This particularly applies to lateral views in which the divergent X-ray beam, poor positioning or scoliosis may result in biconcave endplates which must not erroneously be interpreted as vertebral fractures. • In the breath-hold technique in the thoracic spine, rib margins may obscure vertebral en ...
Right Lower Quadrant Pain: Ruling Out
... In addition to graded compression sonography, a variety of CT techniques have been developed that are extremely valuable in the evaluation of patients with suspected appendicitis.38–41 The differences in CT methodology relate to whether there is administration of oral, intravenous, or rectal contras ...
... In addition to graded compression sonography, a variety of CT techniques have been developed that are extremely valuable in the evaluation of patients with suspected appendicitis.38–41 The differences in CT methodology relate to whether there is administration of oral, intravenous, or rectal contras ...
Coronary CT angiography: Diagnostic value and clinical challenges
... scanners have enabled coronary artery imaging a feasible and reliable clinical test. The technological advancements from 16- to 320-slice systems have progressed in a relatively uniform fashion with improved longitudinal (z-axis) volume coverage, decreased gantry rotation time, and smaller detector ...
... scanners have enabled coronary artery imaging a feasible and reliable clinical test. The technological advancements from 16- to 320-slice systems have progressed in a relatively uniform fashion with improved longitudinal (z-axis) volume coverage, decreased gantry rotation time, and smaller detector ...
Feasibility of contrast agent volume reduction on 640
... 640-slice dynamic volume CT (DVCT) allows for whole-heart acquisition within 0.35s in a single heart beat, which provides the possibility to reduce the amount of contrast agent because the scan time is reduced. This study aimed to optimize the contrast injection protocol for coronary CT angiography ...
... 640-slice dynamic volume CT (DVCT) allows for whole-heart acquisition within 0.35s in a single heart beat, which provides the possibility to reduce the amount of contrast agent because the scan time is reduced. This study aimed to optimize the contrast injection protocol for coronary CT angiography ...
Clinical Breast Imaging
... DVD teaching programs feature a distinctive production process termed “Digital Studio Enhancement” including ...
... DVD teaching programs feature a distinctive production process termed “Digital Studio Enhancement” including ...
Assessment of acute myocardial infarction: current status and
... be a sign of extend of ischemia and provide important prognostic information independent of other predictors, such as clinical markers and cardiac biomarkers. The presence of ST-segment depression in at least 3 ECG leads and maximal ST-segment depression of at least 0.2 mV in patients with chest pai ...
... be a sign of extend of ischemia and provide important prognostic information independent of other predictors, such as clinical markers and cardiac biomarkers. The presence of ST-segment depression in at least 3 ECG leads and maximal ST-segment depression of at least 0.2 mV in patients with chest pai ...
Prediction of Optimal Deployment Projection for Transcatheter Aortic
... Downloaded from http://circinterventions.ahajournals.org/ by guest on June 18, 2017 ...
... Downloaded from http://circinterventions.ahajournals.org/ by guest on June 18, 2017 ...
Ultrasound vs MRI in Diagnosis of Fetal and
... technique is needed for additional information regarding fetal anatomy and pathology as well as different maternal conditions. Magnetic resonance imaging (MRI) is being increasingly used as correlative imaging modality in pregnancy because it uses no ionizing radiation, provides excellent soft-tissu ...
... technique is needed for additional information regarding fetal anatomy and pathology as well as different maternal conditions. Magnetic resonance imaging (MRI) is being increasingly used as correlative imaging modality in pregnancy because it uses no ionizing radiation, provides excellent soft-tissu ...
3D and 4D Fetal Ultrasound Advances Spark Research
... Systems, Department of Radiology and Nuclear Medicine, the University of Maryland, Baltimore. “A relatively small amount of effort reaps huge benefits. It is an investment in an area where radiologists spend much of their time.” Through trial and error, Dr. Siegel and colleagues discovered that re ...
... Systems, Department of Radiology and Nuclear Medicine, the University of Maryland, Baltimore. “A relatively small amount of effort reaps huge benefits. It is an investment in an area where radiologists spend much of their time.” Through trial and error, Dr. Siegel and colleagues discovered that re ...
Value of Echo-Planar Diffusion-Weighted Magnetic Resonance
... Fifty-four patients have been included in this study. The clinical, radiological, and surgical findings of the patients were recorded. There were 32 male and 22 female patients, with ages ranging from 14 to 66 years (average age, 33.6 years). Twelve of 54 patients had undergone their second surgery. ...
... Fifty-four patients have been included in this study. The clinical, radiological, and surgical findings of the patients were recorded. There were 32 male and 22 female patients, with ages ranging from 14 to 66 years (average age, 33.6 years). Twelve of 54 patients had undergone their second surgery. ...
Effects of 8 weeks of continuous positive obstructive sleep apnoea
... subcutaneous or visceral fat after 8 months of CPAP use, where compliance with CPAP averaged 6 h per night. Similar results were also shown in an observational study by VGONTZAS et al. [10] in which OSA patients were treated with nasal CPAP for 3 months. Although the authors stated that there was a ...
... subcutaneous or visceral fat after 8 months of CPAP use, where compliance with CPAP averaged 6 h per night. Similar results were also shown in an observational study by VGONTZAS et al. [10] in which OSA patients were treated with nasal CPAP for 3 months. Although the authors stated that there was a ...