Quantitation of size of relative myocardial perfusion defect by single
... the defect volume. We have termed this the relative reduced perfusion volume, which was determined in the following manner. The magnitude of the count reduction within the defect volume was calculated from the sum of the counts per cubic centimeter in the normal zone minus the counts per cubic centi ...
... the defect volume. We have termed this the relative reduced perfusion volume, which was determined in the following manner. The magnitude of the count reduction within the defect volume was calculated from the sum of the counts per cubic centimeter in the normal zone minus the counts per cubic centi ...
Nuclear Medicine in Musculoskeletal Disorders
... variable or limited. Three-phase bone scintigraphy is currently the most used technique because it allows evaluating the degree of hyperemia (flow phase), increased of articular permeability (blood pool phase) and the presence of alterations in bone remodeling (bone tissue phase). Traditional techni ...
... variable or limited. Three-phase bone scintigraphy is currently the most used technique because it allows evaluating the degree of hyperemia (flow phase), increased of articular permeability (blood pool phase) and the presence of alterations in bone remodeling (bone tissue phase). Traditional techni ...
Task Force 13: Training in Advanced Cardiovascular Imaging
... technology, along with the latest positron emission tomography (PET) and single-photon emission computed tomography (SPECT) detector systems. Current hybrid systems (MDCT plus nuclear) provide attenuation correction for SPECT and PET thereby further improving the diagnostic accuracy of more traditio ...
... technology, along with the latest positron emission tomography (PET) and single-photon emission computed tomography (SPECT) detector systems. Current hybrid systems (MDCT plus nuclear) provide attenuation correction for SPECT and PET thereby further improving the diagnostic accuracy of more traditio ...
mri evaluation of knee cartilage
... and B). To classify chondral lesions using MRI, a system based on arthroscopic classifications is used(21-23). Grade I lesions are shown as abnormalities of focal signals within cartilage substances, corresponding to softening of the cartilage seen on arthroscopy. Grade II lesions are shown as abnor ...
... and B). To classify chondral lesions using MRI, a system based on arthroscopic classifications is used(21-23). Grade I lesions are shown as abnormalities of focal signals within cartilage substances, corresponding to softening of the cartilage seen on arthroscopy. Grade II lesions are shown as abnor ...
Prescribing Information - Lantheus Medical Imaging
... See INDICATIONS and DOSAGE AND ADMINISTRATION sections. Also see the description of additional risks under WARNINGS. Geriatric Use Clinical studies of Technelite® did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Othe ...
... See INDICATIONS and DOSAGE AND ADMINISTRATION sections. Also see the description of additional risks under WARNINGS. Geriatric Use Clinical studies of Technelite® did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Othe ...
Characterization of focal liver lesions by ADC
... Typically 15 sections were acquired per respiratory cycle. The gradient factors (b-values) and spatial direction of the MPGs are identical for all sections acquired during one respiratory cycle and are altered only in between respiratory cycles. Three mutually perpendicular spatial directions were e ...
... Typically 15 sections were acquired per respiratory cycle. The gradient factors (b-values) and spatial direction of the MPGs are identical for all sections acquired during one respiratory cycle and are altered only in between respiratory cycles. Three mutually perpendicular spatial directions were e ...
Conference Proceedings (pdf-file, 27 MB)
... It is our pleasure to welcome you to the (4th) 1997 International Meeting on Fully ThreeDimensional Image Reconstruction in Radiology and Nuclear Medicine, or 3D97. The aim of this meeting is to bring together people actively researching problems related to fully three-dimensional tomography in Radi ...
... It is our pleasure to welcome you to the (4th) 1997 International Meeting on Fully ThreeDimensional Image Reconstruction in Radiology and Nuclear Medicine, or 3D97. The aim of this meeting is to bring together people actively researching problems related to fully three-dimensional tomography in Radi ...
Using Cone Beam CT in Clinical Practice
... Another major difference between CBCT and MDCT imaging technologies is the radiation dose required. Effective dose is a term used to describe the relative risk of exposures to ionizing radiation and is calculated in microSieverts (μSv). Standard MDCT images of the maxillofacial region result in radi ...
... Another major difference between CBCT and MDCT imaging technologies is the radiation dose required. Effective dose is a term used to describe the relative risk of exposures to ionizing radiation and is calculated in microSieverts (μSv). Standard MDCT images of the maxillofacial region result in radi ...
Public Summary Document - Word 93 KB
... MSAC questioned bulk billing rates and patient co-payments for the interim listed CBCT items. The policy area was not able to comment during the course of the meeting, but have subsequently advised that in 2012/13 the bulk billing rate for the interim items is 60% and the average patient co-payment ...
... MSAC questioned bulk billing rates and patient co-payments for the interim listed CBCT items. The policy area was not able to comment during the course of the meeting, but have subsequently advised that in 2012/13 the bulk billing rate for the interim items is 60% and the average patient co-payment ...
Susceptibility-Weighted Imaging - MS-MRI
... the greater availability of clinical 3T MR images, it is now possible to image the entire brain with SWI in roughly 4 minutes. SWI has been found to provide additional clinically useful information that is often complementary to conventional MR imaging sequences used in the evaluation of various neu ...
... the greater availability of clinical 3T MR images, it is now possible to image the entire brain with SWI in roughly 4 minutes. SWI has been found to provide additional clinically useful information that is often complementary to conventional MR imaging sequences used in the evaluation of various neu ...
recist 1.1
... ■ IV and oral contrast used (3-phase liver if appropriate) ■ Field of view adjusted to body habitus (include the whole body, out to the skin) MRI ■ Axial T1 and T2, axial T1 post contrast ■ ≤5mm contiguous slices if possible ■ Use the same machine for all timepoints PET/CT ■ Not required, but may be ...
... ■ IV and oral contrast used (3-phase liver if appropriate) ■ Field of view adjusted to body habitus (include the whole body, out to the skin) MRI ■ Axial T1 and T2, axial T1 post contrast ■ ≤5mm contiguous slices if possible ■ Use the same machine for all timepoints PET/CT ■ Not required, but may be ...
Optical Coherence Tomography (OCT)
... 2002 The Stratus OCT was introduced and quadrupled the speed 400 axial scans per second Stratus became the standard for the diagnosis of many retinal diseases and glaucoma Utilizes time domain technology ...
... 2002 The Stratus OCT was introduced and quadrupled the speed 400 axial scans per second Stratus became the standard for the diagnosis of many retinal diseases and glaucoma Utilizes time domain technology ...
IOSR Journal of Dental and Medical Sciences (JDMS)
... are multilocularity which is commoner and more diagnostic than unilocularity, obliteration of the cul de sac, septations especially when thick, wall nodularity and rarely anaechoic cyst [12]. Adhesion is also a feature which presents as fixed retrovertion of the uterus even on external pressure. On ...
... are multilocularity which is commoner and more diagnostic than unilocularity, obliteration of the cul de sac, septations especially when thick, wall nodularity and rarely anaechoic cyst [12]. Adhesion is also a feature which presents as fixed retrovertion of the uterus even on external pressure. On ...
An Overview of Elastography–An Emerging Branch of Medical Imaging
... fined all principal techniques used in current modes of elasticity imaging for inducing the strain necessary for elasticity assessment. He had written: “Tissue movements can be considered to be of four kinds: primary (e.g. cardiac or fetal limb movement), secondary (e.g. movement of liver tissue in ...
... fined all principal techniques used in current modes of elasticity imaging for inducing the strain necessary for elasticity assessment. He had written: “Tissue movements can be considered to be of four kinds: primary (e.g. cardiac or fetal limb movement), secondary (e.g. movement of liver tissue in ...
LOOP RADIOFREQUENCY COILS FOR CLINICAL MAGNETIC
... experienced a rapid and siginificant technical advancement and has had an enormous impact on the practice of medicine. The first clinical MR systems were installed in 1983 at low field strengths of 0.350.5 Tesla (T) 6, followed by the development of 1 T and 1.5 T magnets. Over the past 25 years, th ...
... experienced a rapid and siginificant technical advancement and has had an enormous impact on the practice of medicine. The first clinical MR systems were installed in 1983 at low field strengths of 0.350.5 Tesla (T) 6, followed by the development of 1 T and 1.5 T magnets. Over the past 25 years, th ...
Free PDF - European Review for Medical and
... alveolar nerves was based only on data derived from surveys carried out on basic studies on cadaveric mandibles23. For this reason any information about anatomical variations was not provided therefore the risk of the damage of the nerve bundles was always present. Detailed MRI anatomical studies, h ...
... alveolar nerves was based only on data derived from surveys carried out on basic studies on cadaveric mandibles23. For this reason any information about anatomical variations was not provided therefore the risk of the damage of the nerve bundles was always present. Detailed MRI anatomical studies, h ...
Application Training Brochure
... to reduce potential treatment errors, rescans, and gain more system availability at the same time. You want to decrease overtime, efficiently onboard new staff, and retain your well-trained employees. ...
... to reduce potential treatment errors, rescans, and gain more system availability at the same time. You want to decrease overtime, efficiently onboard new staff, and retain your well-trained employees. ...
Residents` Handbook Imaging Physics Residency Program
... The UW Imaging Physics Residency program developed from the Radiological Physics Services of the Department of Medical Physics at the University of Wisconsin-Madison. The Medical Physics Department has a long history of education and training in the application of physics in medicine and biology. Or ...
... The UW Imaging Physics Residency program developed from the Radiological Physics Services of the Department of Medical Physics at the University of Wisconsin-Madison. The Medical Physics Department has a long history of education and training in the application of physics in medicine and biology. Or ...
Assessment of the Performance of an Enhanced Planar Processing
... diagnosis of osseous metastasis. It is known that the fraction of bone containing metastatic lesions in oncologic patients is a strong prognostic indicator of survival longevity. Moreover, the presence or absence of bone metastases will influence the treatment planning, requiring an accurate interpr ...
... diagnosis of osseous metastasis. It is known that the fraction of bone containing metastatic lesions in oncologic patients is a strong prognostic indicator of survival longevity. Moreover, the presence or absence of bone metastases will influence the treatment planning, requiring an accurate interpr ...
ASNC Imaging Guidelines for Nuclear Cardiology Procedures
... section provides the clinical indications for the study. Major areas to be considered are: diagnosis of coronary artery disease (CAD), extent and severity of known CAD, risk stratification, determination of viability, and assessment of acute chest pain syndromes. With the inclusion of the History an ...
... section provides the clinical indications for the study. Major areas to be considered are: diagnosis of coronary artery disease (CAD), extent and severity of known CAD, risk stratification, determination of viability, and assessment of acute chest pain syndromes. With the inclusion of the History an ...
06. Radiation Protection of Children During Computed Tomography
... from exposures from medical imaging due both to relatively high dose per exam and to the increasing use of this modality. ...
... from exposures from medical imaging due both to relatively high dose per exam and to the increasing use of this modality. ...
Imaging the posterior mediastinum: a multimodality approach
... Based on these various anatomical structures, a wide variety of pathological conditions can be located in the posterior mediastinum (Table 1). Many of these conditions can be detected by chest radiography (CXR). However, computed tomography (CT) and magnetic resonance imaging (MRI) are the imaging m ...
... Based on these various anatomical structures, a wide variety of pathological conditions can be located in the posterior mediastinum (Table 1). Many of these conditions can be detected by chest radiography (CXR). However, computed tomography (CT) and magnetic resonance imaging (MRI) are the imaging m ...
RADIATION PROTECTION IN DIAGNOSTIC RADIOLOGY
... The FWHM of the point spread function of a pin, or the edge response function of an edge should not differ more than ± 20% from baseline. • Low contrast resolution Polystyrene pins of 0.35 cm diameter inserted in a uniform body water phantom should be visible in the image. ...
... The FWHM of the point spread function of a pin, or the edge response function of an edge should not differ more than ± 20% from baseline. • Low contrast resolution Polystyrene pins of 0.35 cm diameter inserted in a uniform body water phantom should be visible in the image. ...
SADMFR guidelines for the use of cone-beam computed
... temporomandibular disorders (TMDs) and orofacial pain. In adsensitive. The choice of exposure values, optimization of dedition, there was one Master of Science in dentomaxillofacial vice-specific image quality and measures for radiation protecradiology (London), one dentomaxillofacial radiologist wi ...
... temporomandibular disorders (TMDs) and orofacial pain. In adsensitive. The choice of exposure values, optimization of dedition, there was one Master of Science in dentomaxillofacial vice-specific image quality and measures for radiation protecradiology (London), one dentomaxillofacial radiologist wi ...
Positron emission tomography
Positron emission tomography (PET) is a nuclear medicine, functional imaging technique that produces a three-dimensional image of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron-emitting radionuclide (tracer), which is introduced into the body on a biologically active molecule. Three-dimensional images of tracer concentration within the body are then constructed by computer analysis. In modern PET-CT scanners, three dimensional imaging is often accomplished with the aid of a CT X-ray scan performed on the patient during the same session, in the same machine.If the biologically active molecule chosen for PET is fluorodeoxyglucose (FDG), an analogue of glucose, the concentrations of tracer imaged will indicate tissue metabolic activity as it corresponds to the regional glucose uptake. Use of this tracer to explore the possibility of cancer metastasis (i.e., spreading to other sites) is the most common type of PET scan in standard medical care (90% of current scans). However, on a minority basis, many other radioactive tracers are used in PET to image the tissue concentration of other types of molecules of interest. One of the disadvantages of PET scanners is their operating cost.