Follow‑up after focal therapy in renal masses: an
... thickness protocol as the imaging of choice for the follow-up after FT. Delayed or IVP phase was advised if suspicion of urinary tract involvement (leak or hydronephrosis). The second preferred imaging modality was mpMRI (T1, T2, DWI and DCE sequences, 94 % consensus) (Fig. 1d). In case of CKD IV–V, ...
... thickness protocol as the imaging of choice for the follow-up after FT. Delayed or IVP phase was advised if suspicion of urinary tract involvement (leak or hydronephrosis). The second preferred imaging modality was mpMRI (T1, T2, DWI and DCE sequences, 94 % consensus) (Fig. 1d). In case of CKD IV–V, ...
smash, sense, pils, grappa
... progress in further increasing imaging speed has been the development of parallel MRI (pMRI). Within the last 3 years, parallel imaging methods have become commercially available, and therefore are now available for a broad clinical use. The basic feature of pMRI is a scan time reduction, applicable ...
... progress in further increasing imaging speed has been the development of parallel MRI (pMRI). Within the last 3 years, parallel imaging methods have become commercially available, and therefore are now available for a broad clinical use. The basic feature of pMRI is a scan time reduction, applicable ...
Good Afternoon I am Bulent Aydogan and I will be Good Afternoon I
... deliver accurately to the real target or control treatments with the control we are use to in externalbeam radiotherapy Doses have been prescribed to points A defined with respect to the applicator – We do not know where the target is – It could be that the very high dose near the applicator is what ...
... deliver accurately to the real target or control treatments with the control we are use to in externalbeam radiotherapy Doses have been prescribed to points A defined with respect to the applicator – We do not know where the target is – It could be that the very high dose near the applicator is what ...
DAP and effective dose
... • Easy online measurement of patient radiation exposure • Quantity is directly used for: Definition of diagnostic reference levels (DRLs) Optimization ...
... • Easy online measurement of patient radiation exposure • Quantity is directly used for: Definition of diagnostic reference levels (DRLs) Optimization ...
Clinical Dose Optimization Service™
... CDOS is an essential component in creating an imaging program that consistently results in diagnostic quality images at the lowest radiation dose. ...
... CDOS is an essential component in creating an imaging program that consistently results in diagnostic quality images at the lowest radiation dose. ...
Impact of single photon emission tomography combined with
... to 23–31% of patients that may need imaging test [1, 2]. They are related to radiation exposure (high breast exposure unacceptable in premenopausal women: 20–50 mGy v/s 1.3 for V/P scan [3]), or to contrast contraindications (renal failure, severe contrast allergy, diabetics on metformin). V/P SPECT ...
... to 23–31% of patients that may need imaging test [1, 2]. They are related to radiation exposure (high breast exposure unacceptable in premenopausal women: 20–50 mGy v/s 1.3 for V/P scan [3]), or to contrast contraindications (renal failure, severe contrast allergy, diabetics on metformin). V/P SPECT ...
Inclusion of the dose from kilovoltage cone beam CT in the radiation
... We have modeled the kV CBCT beam from a Varian OBI system on a Trilogy linear accelerator 共Varian Medical Systems, Palo Alto, CA兲 in the Philips PINNACLE treatment planning system v8.0 共Philips Medical Systems, Milpitas, CA兲. The OBI system has been extensively described elsewhere.1,10 In brief, the ...
... We have modeled the kV CBCT beam from a Varian OBI system on a Trilogy linear accelerator 共Varian Medical Systems, Palo Alto, CA兲 in the Philips PINNACLE treatment planning system v8.0 共Philips Medical Systems, Milpitas, CA兲. The OBI system has been extensively described elsewhere.1,10 In brief, the ...
Intervention Research, Council on Clinical Cardiology, and Council
... general understanding of these issues to allow them to participate in decisions related to their health care. In the following sections, strategies to effectively educate each of these groups are discussed. ...
... general understanding of these issues to allow them to participate in decisions related to their health care. In the following sections, strategies to effectively educate each of these groups are discussed. ...
Foreword: Radiology Select Volume 5—Radiation Dose and
... of future cancers from low doses of ionizing radiation (16,17) and one arguing quite the opposite—that these increases in cancer risk are not hypothetical and have begun to be measured (18). Because this debate is unlikely to be settled anytime soon, Thrall (19) proposes that the most promising appr ...
... of future cancers from low doses of ionizing radiation (16,17) and one arguing quite the opposite—that these increases in cancer risk are not hypothetical and have begun to be measured (18). Because this debate is unlikely to be settled anytime soon, Thrall (19) proposes that the most promising appr ...
Spiral CT
... – Interscan delay is a small delay between slices or volumes that is needed during standard axial scanning for the x-ray tube to stop and reverse direction. Interscan delay can also be used to allow extra time during a scan for tube cooling ...
... – Interscan delay is a small delay between slices or volumes that is needed during standard axial scanning for the x-ray tube to stop and reverse direction. Interscan delay can also be used to allow extra time during a scan for tube cooling ...
CEP10071 - Evaluation report: X-ray tomographic image guided
... operating in full fan or half fan mode). The direction of gantry rotation can be either clock-wise or anti-clockwise. The direction defaults to that with a start angle nearest the gantry angle immediately prior to the start of image acquisition. There are six standard pre-defined CBCT modes with thr ...
... operating in full fan or half fan mode). The direction of gantry rotation can be either clock-wise or anti-clockwise. The direction defaults to that with a start angle nearest the gantry angle immediately prior to the start of image acquisition. There are six standard pre-defined CBCT modes with thr ...
ACR–ASNR–SCBT-MR Practice Parameter for the Performance of
... In the vertebral column, the most benign changes are well seen by MRI and initially consist of marrow edema, followed by fatty replacement of the marrow. These changes can occur as soon as a few weeks after the cessation of radiation therapy. More serious complications include radiation osteonecros ...
... In the vertebral column, the most benign changes are well seen by MRI and initially consist of marrow edema, followed by fatty replacement of the marrow. These changes can occur as soon as a few weeks after the cessation of radiation therapy. More serious complications include radiation osteonecros ...
ACR–ASNR–SCBT-MR Practice Parameter for the Performance of
... In the vertebral column, the most benign changes are well seen by MRI and initially consist of marrow edema, followed by fatty replacement of the marrow. These changes can occur as soon as a few weeks after the cessation of radiation therapy. More serious complications include radiation osteonecros ...
... In the vertebral column, the most benign changes are well seen by MRI and initially consist of marrow edema, followed by fatty replacement of the marrow. These changes can occur as soon as a few weeks after the cessation of radiation therapy. More serious complications include radiation osteonecros ...
The Measurement, Reporting, and Management of
... technology, but also in data acquisition systems (DAS), x-ray tube design and other subsystems. One illustration of this is that while MDCT scanners have multiple rows of detectors, the data collected from multiple rows can be combined as though they were collected from one detector. To describe thi ...
... technology, but also in data acquisition systems (DAS), x-ray tube design and other subsystems. One illustration of this is that while MDCT scanners have multiple rows of detectors, the data collected from multiple rows can be combined as though they were collected from one detector. To describe thi ...
Knee Joint: Comprehensive Assessment with 3D Isotropic
... approved study was performed with a waiver of informed consent. FSE-Cube was added to the routine 3.0-T MR imaging protocol performed in 100 symptomatic patients (54 male patients with a median age of 32 years and 46 female patients with a median age of 33 years) who subsequently underwent arthrosco ...
... approved study was performed with a waiver of informed consent. FSE-Cube was added to the routine 3.0-T MR imaging protocol performed in 100 symptomatic patients (54 male patients with a median age of 32 years and 46 female patients with a median age of 33 years) who subsequently underwent arthrosco ...
MR Imaging of Scrotal Tumors and Pseudotumors1
... US findings or a wide differential diagnosis after US. Magnetic resonance (MR) imaging is an accurate and cost-effective diagnostic adjunct in those patients with solid scrotal lesions for whom the findings from clinical and US evaluations are inconclusive (2). MR imaging allows tissue characterizat ...
... US findings or a wide differential diagnosis after US. Magnetic resonance (MR) imaging is an accurate and cost-effective diagnostic adjunct in those patients with solid scrotal lesions for whom the findings from clinical and US evaluations are inconclusive (2). MR imaging allows tissue characterizat ...
Hyperextension injuries: - Virginia Veterinary Medical Association
... that are actively remodeling bone. By doing this, the radioactive Technetium is deposited at the site of osteoblastic activity and as the radioactive material decays, it emits a gamma ray. This gamma radiation escapes the body for external detection and measurement by a scintillation camera. The cam ...
... that are actively remodeling bone. By doing this, the radioactive Technetium is deposited at the site of osteoblastic activity and as the radioactive material decays, it emits a gamma ray. This gamma radiation escapes the body for external detection and measurement by a scintillation camera. The cam ...
Influence of Voxel Size in the Diagnostic Ability of Cone Beam
... are on the buccal or lingual tooth surfaces (7). Aiming to evaluate how the elimination of structure superimposition improves visualization, da Silveira et al (8) conducted an in vitro study and observed that multislice computed tomography (MSCT) scans offer high sensitivity and specificity to the d ...
... are on the buccal or lingual tooth surfaces (7). Aiming to evaluate how the elimination of structure superimposition improves visualization, da Silveira et al (8) conducted an in vitro study and observed that multislice computed tomography (MSCT) scans offer high sensitivity and specificity to the d ...
Magnetic resonance imaging- based radiation therapy
... This work studied the conversion of the magnetic resonance images to synthetic heterogeneous computed tomography (CT) images, so-called pseudo-CT images. The study focused on updating and modifying a previously introduced conversion technique. Ultimate objective of this study was to verify the techn ...
... This work studied the conversion of the magnetic resonance images to synthetic heterogeneous computed tomography (CT) images, so-called pseudo-CT images. The study focused on updating and modifying a previously introduced conversion technique. Ultimate objective of this study was to verify the techn ...
McClintock-Virtopsy-PI 2011
... – Radiologist perform a preliminary read on PMCT at the time of and immediately after scanning – Subspecialty radiologists brought in as needed – Pathologist have access to the PMCT report • Perform medical autopsy per usual departmental protocols • Gross images, PAD, and final reports made availabl ...
... – Radiologist perform a preliminary read on PMCT at the time of and immediately after scanning – Subspecialty radiologists brought in as needed – Pathologist have access to the PMCT report • Perform medical autopsy per usual departmental protocols • Gross images, PAD, and final reports made availabl ...
Imaging of atherosclerosis: magnetic resonance imaging
... imaging [including ultrasound, computed tomography (CT), positron emission tomography (PET) and MRI] and are being followed for clinical events and resource use up to 3 years. The aim of the present article is to provide an overview of the feasibility and validation data, as well as the research and ...
... imaging [including ultrasound, computed tomography (CT), positron emission tomography (PET) and MRI] and are being followed for clinical events and resource use up to 3 years. The aim of the present article is to provide an overview of the feasibility and validation data, as well as the research and ...
Gated Myocardial Perfusion SPECT Imaging.
... correction and lesion localization. CT systems are also able to provide information about coronary angiography and when combined with perfusion images can result in substantial diagnostic information in one imaging session. Another area of research being conducted and have been implemented in commer ...
... correction and lesion localization. CT systems are also able to provide information about coronary angiography and when combined with perfusion images can result in substantial diagnostic information in one imaging session. Another area of research being conducted and have been implemented in commer ...
Dual slice CT scanner comparison report
... In order to compare the performance of CT scanners, the ImPACT evaluation programme has developed a range of assessment techniques. These were described in detail in MDA/98/25, Type Testing of CT Scanners: Methods and Methodology for Assessing Imaging Performance and Dosimetry. The results of this t ...
... In order to compare the performance of CT scanners, the ImPACT evaluation programme has developed a range of assessment techniques. These were described in detail in MDA/98/25, Type Testing of CT Scanners: Methods and Methodology for Assessing Imaging Performance and Dosimetry. The results of this t ...
MAGNETIC RESONANCE IMAGING OF LIVER LESIONS
... resection of the secondary deposits have improved longterm survival rates compared to similar patients who do not undergo resection45-47. Preoperative diagnostic imaging evaluation of metastases should be performed to detect the number, size, segmental location and relationship to hepatic vasculatur ...
... resection of the secondary deposits have improved longterm survival rates compared to similar patients who do not undergo resection45-47. Preoperative diagnostic imaging evaluation of metastases should be performed to detect the number, size, segmental location and relationship to hepatic vasculatur ...
Pathology-guided MR analysis of acute and chronic experimental
... Published online in Wiley InterScience (www.interscience.wiley.com). ...
... Published online in Wiley InterScience (www.interscience.wiley.com). ...
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.