American Society for Therapeutic Radiology and
... a mobile soft tissue mass within the body, and patient repositioning based on bony landmarks alone is subject to error. One solution to address this error would be to expand the radiation field sizes adequately to cover the entire range of potential tumor positions within the body. This approach by ...
... a mobile soft tissue mass within the body, and patient repositioning based on bony landmarks alone is subject to error. One solution to address this error would be to expand the radiation field sizes adequately to cover the entire range of potential tumor positions within the body. This approach by ...
a rare mediastinum tumor: the primary leiomyosarcoma
... • It can remain asymptomatic for a long time. • It can reach a large size, and is manifested by signs of compression of adjacent organs depending on its location. ...
... • It can remain asymptomatic for a long time. • It can reach a large size, and is manifested by signs of compression of adjacent organs depending on its location. ...
PADRE - wfnrs
... • SWI is one of existing techniques for phaseweighted MR imaging; with SWI, however, phase difference is fixed and cannot be selected. • We have developed new phase-weighted MR imaging, “Phase Difference Enhanced Imaging (PADRE*)”, in which phase difference between objective and surrounding tissue i ...
... • SWI is one of existing techniques for phaseweighted MR imaging; with SWI, however, phase difference is fixed and cannot be selected. • We have developed new phase-weighted MR imaging, “Phase Difference Enhanced Imaging (PADRE*)”, in which phase difference between objective and surrounding tissue i ...
TOF法とFSBB法の組み合わせによるhybrid MRA の初期臨床応用
... Our basic idea was that, if the same amount of contrast material was employed, it was preferable to use it in a manner that could provide more diagnostic information in establishing the diagnosis. In this regard, we confirmed that, by using 8 mL each, consecutive acquisition of TCMRA and PWI could y ...
... Our basic idea was that, if the same amount of contrast material was employed, it was preferable to use it in a manner that could provide more diagnostic information in establishing the diagnosis. In this regard, we confirmed that, by using 8 mL each, consecutive acquisition of TCMRA and PWI could y ...
Biologic Effects - Michigan State University
... the tissues • Some tissue heating may take place – (applications of ultrasound for cancer therapy) • Importance of using the lowest power level available for the imaging task at hand • Especially important when imaging embryos and fetuses ...
... the tissues • Some tissue heating may take place – (applications of ultrasound for cancer therapy) • Importance of using the lowest power level available for the imaging task at hand • Especially important when imaging embryos and fetuses ...
DETERMINATION OF CT-TO-DENSITY CONVERSION
... plot shows scattered data points but its behavior can be predicted to consist of 2 linear relationships for CT value ranges from ⫺1000 to 0 and above 0. In addition, it should be recognized that the slope of these straight lines and the point of inflection change somewhat from CT scanner to CT scann ...
... plot shows scattered data points but its behavior can be predicted to consist of 2 linear relationships for CT value ranges from ⫺1000 to 0 and above 0. In addition, it should be recognized that the slope of these straight lines and the point of inflection change somewhat from CT scanner to CT scann ...
PLACE TITLE HERE USING ALL UPPER CASE
... This IRB approved project enlisted 150 patients that were referred to a pediatric scoliosis clinic and were found to have no spinal disease. The holdout method for cross validation was utilized to establish the training set (n=75 patients), from which a regression equation was developed. The testing ...
... This IRB approved project enlisted 150 patients that were referred to a pediatric scoliosis clinic and were found to have no spinal disease. The holdout method for cross validation was utilized to establish the training set (n=75 patients), from which a regression equation was developed. The testing ...
dynamic susceptibility contrast imaging
... glioblastoma. A comprehensive review of studies performed during the last 5 years showed that some studies found a statistically significant difference between tumor groups (2 – 4, 17, 18), and others did not (8, 19). The results of our study are in accordance with the theory of tumors: tumor develop ...
... glioblastoma. A comprehensive review of studies performed during the last 5 years showed that some studies found a statistically significant difference between tumor groups (2 – 4, 17, 18), and others did not (8, 19). The results of our study are in accordance with the theory of tumors: tumor develop ...
radioisotopes
... beam is directed towards the diseased tissue so the beam can deliver a high dose of radiation while sparing the surrounding healthy tissue. Brachytherapy uses a source implanted in the body at the site to be irradiated. Brachytherapy sources can be placed on the skin or implanted internally, and can ...
... beam is directed towards the diseased tissue so the beam can deliver a high dose of radiation while sparing the surrounding healthy tissue. Brachytherapy uses a source implanted in the body at the site to be irradiated. Brachytherapy sources can be placed on the skin or implanted internally, and can ...
IAEA SBRT Talks - SBRT Singapore
... day and different day reproducible delivery by MLC • Very similar results when measurements are repeated on different linacs well matched and stable linacs • Where to set tolerance for pass/fail? ...
... day and different day reproducible delivery by MLC • Very similar results when measurements are repeated on different linacs well matched and stable linacs • Where to set tolerance for pass/fail? ...
- Wiley Online Library
... this restriction and brings it to equal stature with MRI, inasmuch as it can be displayed in a 3-D format and reconstructed on any plane. With thin slices, the data can be reconstructed for 3-D imaging with little artifact and pelvic anatomy displayed in sagittal and coronal planes, similar to MRI. ...
... this restriction and brings it to equal stature with MRI, inasmuch as it can be displayed in a 3-D format and reconstructed on any plane. With thin slices, the data can be reconstructed for 3-D imaging with little artifact and pelvic anatomy displayed in sagittal and coronal planes, similar to MRI. ...
Use of Ionising Radiation for Research in Humans
... For ionising radiation procedures deemed to be in addition to standard clinical care: Any exposure to ionising radiation beyond that considered standard clinical care of the condition being treated. Radiation exposure that is requested specifically for research purposes only, for example use of diff ...
... For ionising radiation procedures deemed to be in addition to standard clinical care: Any exposure to ionising radiation beyond that considered standard clinical care of the condition being treated. Radiation exposure that is requested specifically for research purposes only, for example use of diff ...
Post- primary certification
... The tracer travels into the blood vessels until it arrives to the bone ...
... The tracer travels into the blood vessels until it arrives to the bone ...
Criteria for Registration in Clinical Radiology 2. Holds recognised
... In such cases, the Specialty Subcommittee of the National Specialist Register, shall exercise discretion and jurisdiction based on the following guidelines: 4.3.1 Submission of Supervisor’s Report. 4.3.2 Submission of a Log Book on Diagnostic Imaging Procedures past 2 years. The details in the Log B ...
... In such cases, the Specialty Subcommittee of the National Specialist Register, shall exercise discretion and jurisdiction based on the following guidelines: 4.3.1 Submission of Supervisor’s Report. 4.3.2 Submission of a Log Book on Diagnostic Imaging Procedures past 2 years. The details in the Log B ...
X-Ray Intensive Medical Procedures Using a Standard
... dose imaging. They can be employed with standard fluoroscopy to reduce radiation over 90%12. When acquiring an image with pulsed radiation, an 8 pulse image uses essentially 8 times the radiation of a 1 pulse image, and roughly 1/4 the radiation of standard imaging settings12. While this technique i ...
... dose imaging. They can be employed with standard fluoroscopy to reduce radiation over 90%12. When acquiring an image with pulsed radiation, an 8 pulse image uses essentially 8 times the radiation of a 1 pulse image, and roughly 1/4 the radiation of standard imaging settings12. While this technique i ...
Enhancing Patient Safety in Today`s Healthcare
... the preference of the radiologist, but for many clinical situations, indication-appropriate image quality customization can be achieved while still reducing radiation dose. In specific instances, scan acquisitions can be limited and still provide all of the needed information; for example, for CT co ...
... the preference of the radiologist, but for many clinical situations, indication-appropriate image quality customization can be achieved while still reducing radiation dose. In specific instances, scan acquisitions can be limited and still provide all of the needed information; for example, for CT co ...
Characterization of Metabolic Differences between Benign and
... were used to calculate spectral differences between benign and malignant populations (Wilcoxon rank sum test). Significance was assumed at a confidence interval of 95% (a = .05) for a two-tailed distribution. All spectral error bars are those for the population. We analyzed the effect of including a ...
... were used to calculate spectral differences between benign and malignant populations (Wilcoxon rank sum test). Significance was assumed at a confidence interval of 95% (a = .05) for a two-tailed distribution. All spectral error bars are those for the population. We analyzed the effect of including a ...
Radiography Didactic and Clinical Competency Requirements
... Candidates must demonstrate competence in all 37 procedures identified as mandatory. Procedures should be performed on patients whenever possible. A maximum of eight mandatory procedures may be simulated if demonstration on patients is not feasible. Candidates must demonstrate competence in 15 of th ...
... Candidates must demonstrate competence in all 37 procedures identified as mandatory. Procedures should be performed on patients whenever possible. A maximum of eight mandatory procedures may be simulated if demonstration on patients is not feasible. Candidates must demonstrate competence in 15 of th ...
Iterative reconstruction in single source dual-energy CT
... careful review of the iodine-density images in the axial, coronal and sagittal planes. Discrepant cases, defined by a difference greater than 2 points between the two readers' grades, were re-evaluated by a third expert. A quantitative analysis, with HU measurements including standard deviations obt ...
... careful review of the iodine-density images in the axial, coronal and sagittal planes. Discrepant cases, defined by a difference greater than 2 points between the two readers' grades, were re-evaluated by a third expert. A quantitative analysis, with HU measurements including standard deviations obt ...
Radiobiology Knowledge Level of Radiologists
... this study aimed to test their knowledge level in different areas of this field including general radiation protection section, radiation dose estimation section and radiation induced cancer section. The results indicated an overall inadequacy of knowledge (59%). The lowest obtained score (55%) was ...
... this study aimed to test their knowledge level in different areas of this field including general radiation protection section, radiation dose estimation section and radiation induced cancer section. The results indicated an overall inadequacy of knowledge (59%). The lowest obtained score (55%) was ...
oral presentations - Via Medica Journals
... [18F]-Fluorodeoxyglucose ([18F]-FDG) is the most common radiotracer used in PET studies in oncology. In recent years the synthesis of new and long-lived beta emitters compounds has demonstrate the usefulness of PET imaging as non-invasive diagnostic tool also in non oncologic field. The production o ...
... [18F]-Fluorodeoxyglucose ([18F]-FDG) is the most common radiotracer used in PET studies in oncology. In recent years the synthesis of new and long-lived beta emitters compounds has demonstrate the usefulness of PET imaging as non-invasive diagnostic tool also in non oncologic field. The production o ...
DOC
... management of patients with known or suspected coronary artery disease for almost two decades. Indications and Usage:Myocardial Imaging: Cardiolite® (Kit for the Preparation of Technetium Tc99m Sestamibi for Injection), is a myocardial perfusion agent that is indicated for detecting coronary artery ...
... management of patients with known or suspected coronary artery disease for almost two decades. Indications and Usage:Myocardial Imaging: Cardiolite® (Kit for the Preparation of Technetium Tc99m Sestamibi for Injection), is a myocardial perfusion agent that is indicated for detecting coronary artery ...
American Society of Nuclear Cardiology
... second-step selection based on the inclusion criteria; disagreements were resolved by consensus. In addition, one reviewer manually reviewed the bibliographies of retrieved articles for additional citations. A study was included if all of the following criteria were met: (1) the study had prospectiv ...
... second-step selection based on the inclusion criteria; disagreements were resolved by consensus. In addition, one reviewer manually reviewed the bibliographies of retrieved articles for additional citations. A study was included if all of the following criteria were met: (1) the study had prospectiv ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... colorectal techniques, such as superior phased array pelvic and endorectal coils as well as the administration of rectal contrast agents, has improved image quality(Figure 1–2).. The multiplanar imaging capabilities of MRI offer a special advantage of this modality. Images produced by MRI are based ...
... colorectal techniques, such as superior phased array pelvic and endorectal coils as well as the administration of rectal contrast agents, has improved image quality(Figure 1–2).. The multiplanar imaging capabilities of MRI offer a special advantage of this modality. Images produced by MRI are based ...
effective physics education for optimizing ct image quality and dose
... Education, Image Quality, Radiation Dose Management. INTRODUCTION Figure 1. The model of a program to provide physics education to support clinical CT procedures. ...
... Education, Image Quality, Radiation Dose Management. INTRODUCTION Figure 1. The model of a program to provide physics education to support clinical CT procedures. ...
Neutron capture therapy of cancer
Neutron capture therapy (NCT) is a noninvasive therapeutic modality for treating locally invasive malignant tumors such as primary brain tumors and recurrent head and neck cancer. It is a two step procedure: first, the patient is injected with a tumor localizing drug containing a non-radioactive isotope that has a high propensity or cross section (σ) to capture slow neutrons. The cross section of the capture agent is many times greater than that of the other elements present in tissues such as hydrogen, oxygen, and nitrogen. In the second step, the patient is radiated with epithermal neutrons, which after losing energy as they penetrate tissue, are absorbed by the capture agent which subsequently emits high-energy charged particles, thereby resulting in a biologically destructive nuclear reaction (Fig.1).All of the clinical experience to date with NCT is with the non-radioactive isotope boron-10, and this is known as boron neutron capture therapy (BNCT). At this time, the use of other non-radioactive isotopes, such as gadolinium, has been limited, and to date, it has not been used clinically. BNCT has been evaluated clinically as an alternative to conventional radiation therapy for the treatment of malignant brain tumors (gliomas), and more recently, recurrent, locally advanced head and neck cancer.