AAPM/RSNA Physics Tutorial for Residents
... fields and the compatibility of the many so-called MR-compatible or MR-safe surgical implants and other tools are being reinvestigated at high field strengths. The use of rapid imaging techniques such as echo-planar imaging and half-Fourier rapid acquisition with relaxation enhancement, or RARE, alo ...
... fields and the compatibility of the many so-called MR-compatible or MR-safe surgical implants and other tools are being reinvestigated at high field strengths. The use of rapid imaging techniques such as echo-planar imaging and half-Fourier rapid acquisition with relaxation enhancement, or RARE, alo ...
Metabolic Imaging and Other Applications of Hyperpolarized 13C1
... the scanner, the obtained SNR values will no longer be a function of the main magnetic field of the used imaging system. The term hyperpolarization has been introduced to describe the situation when a nonthermal equilibrium level of polarization has been created. The population difference between th ...
... the scanner, the obtained SNR values will no longer be a function of the main magnetic field of the used imaging system. The term hyperpolarization has been introduced to describe the situation when a nonthermal equilibrium level of polarization has been created. The population difference between th ...
Imaging of malignant cervical lymphadenopathy.
... problematic, particularly for the N0 neck. Positron emission tomography Most head and neck PET imaging is performed with the radiolabelled glucose analogue 18FDG which has increased uptake in viable malignant tumour due to enhanced glycolysis. The uptake can be mapped by two opposing detectors which ...
... problematic, particularly for the N0 neck. Positron emission tomography Most head and neck PET imaging is performed with the radiolabelled glucose analogue 18FDG which has increased uptake in viable malignant tumour due to enhanced glycolysis. The uptake can be mapped by two opposing detectors which ...
Using Cone Beam CT in Clinical Practice
... This course was written for dentists, dental hygienists and assistants, from novice to skilled. Educational Methods: This course is a self-instructional journal and web activity. Provider Disclosure: PennWell does not have a leadership position or a commercial interest in any products or services di ...
... This course was written for dentists, dental hygienists and assistants, from novice to skilled. Educational Methods: This course is a self-instructional journal and web activity. Provider Disclosure: PennWell does not have a leadership position or a commercial interest in any products or services di ...
Review Article Use of Cone Beam Computed Tomography in
... Patient Positioning. Depending on the system employed, maxillofacial CBCT can be performed with the patient in three possible positions: (1) sitting, (2) standing, and (3) supine. Equipment that requires the patient to be supine has a larger physical footprint and may not be readily accessible for p ...
... Patient Positioning. Depending on the system employed, maxillofacial CBCT can be performed with the patient in three possible positions: (1) sitting, (2) standing, and (3) supine. Equipment that requires the patient to be supine has a larger physical footprint and may not be readily accessible for p ...
Radiation Therapy Professional Curriculum
... the mission, goals and needs of each radiation therapy program. Faculty are encouraged to expand and broaden these fundamental objectives as they incorporate them into their curricula. Specific instructional methods were intentionally omitted to allow for programmatic prerogative as well as creativi ...
... the mission, goals and needs of each radiation therapy program. Faculty are encouraged to expand and broaden these fundamental objectives as they incorporate them into their curricula. Specific instructional methods were intentionally omitted to allow for programmatic prerogative as well as creativi ...
Making the difference with Philips Live Image
... Advanced functionality includes the isocentric tilt feature that tilts the tabletop while keeping the point of rotation fixed in the isocenter of the imaging system. The syncra tilt feature synchronizes the stand orientation with the isocentric tilt movement so that the view stays perpendicular to t ...
... Advanced functionality includes the isocentric tilt feature that tilts the tabletop while keeping the point of rotation fixed in the isocenter of the imaging system. The syncra tilt feature synchronizes the stand orientation with the isocentric tilt movement so that the view stays perpendicular to t ...
Positron Emission Tomography (PET) Scanning: Cardiac Applications
... Positron emission tomography (PET) scans are based on the use of positron-emitting radionuclide tracers, which simultaneously emit 2 high-energy photons in opposite directions. These photons can be simultaneously detected (referred to as coincidence detection) by a PET scanner, comprising multiple s ...
... Positron emission tomography (PET) scans are based on the use of positron-emitting radionuclide tracers, which simultaneously emit 2 high-energy photons in opposite directions. These photons can be simultaneously detected (referred to as coincidence detection) by a PET scanner, comprising multiple s ...
M2-53 Continuous Bed Motion Acquisition for an LSO PET
... 22 mm to 10 mm with a contrast ratio of 3:1. Qualitatively, they also observed an overall improvement in patient image quality with continuous bed motion acquisition. The contrast improvement observed by Brasse et al. [9] is most likely due to the increased axial sampling that can be achieved with c ...
... 22 mm to 10 mm with a contrast ratio of 3:1. Qualitatively, they also observed an overall improvement in patient image quality with continuous bed motion acquisition. The contrast improvement observed by Brasse et al. [9] is most likely due to the increased axial sampling that can be achieved with c ...
ACR–NASCI–SPR Practice Parameter
... insufficiency [8-11]. However, unenhanced MRA techniques are available for assessing the vasculature in patients who cannot or should not receive gadolinium-based contrast agents [12-15]. Compared to vascular ultrasound, MRA is less operator dependent, yields images of the vascular system in a forma ...
... insufficiency [8-11]. However, unenhanced MRA techniques are available for assessing the vasculature in patients who cannot or should not receive gadolinium-based contrast agents [12-15]. Compared to vascular ultrasound, MRA is less operator dependent, yields images of the vascular system in a forma ...
Stochastic formulation of patient positioning using linac
... The clinical availability of linac-mounted cone beam imMedical Physics, Vol. 38, No. 2, February 2011 ...
... The clinical availability of linac-mounted cone beam imMedical Physics, Vol. 38, No. 2, February 2011 ...
Imaging of multiple myeloma: Current concepts Thorsten Derlin
... and CT are the excellent depiction of the spinal cord and nerve roots, detection of soft tissue manifestations and the ability to differentiate between physiological and myeloma-infiltrated bone marrow[6,33-35]. The involvement of the bone marrow is classified in three different patterns[9,36-38]: ...
... and CT are the excellent depiction of the spinal cord and nerve roots, detection of soft tissue manifestations and the ability to differentiate between physiological and myeloma-infiltrated bone marrow[6,33-35]. The involvement of the bone marrow is classified in three different patterns[9,36-38]: ...
MotionFree - GE Healthcare
... Gated PET acquisition was the first step toward motion-free PET imaging. The most important application of Gated PET imaging is in radiation treatment planning. It allows users to see where the tumor was at a given time and how it moves during patient respiration. The ability to see the tumor in its ...
... Gated PET acquisition was the first step toward motion-free PET imaging. The most important application of Gated PET imaging is in radiation treatment planning. It allows users to see where the tumor was at a given time and how it moves during patient respiration. The ability to see the tumor in its ...
brain tumor target volume determination for radiation treatment
... provide the basis for comparison with the segmentations prepared by the automated expert systems. The expertise of each radiation oncologist is as follows: Physician 1 is a radiation oncologist specializing in neurooncology with 9 years of clinical practice in radiation oncology and involvement with ...
... provide the basis for comparison with the segmentations prepared by the automated expert systems. The expertise of each radiation oncologist is as follows: Physician 1 is a radiation oncologist specializing in neurooncology with 9 years of clinical practice in radiation oncology and involvement with ...
A Guide to CT Radiation Dose Management
... quantity is occasionally, but not commonly, used in discussing radiation from CT scans. It is preferable not to use it because of possible confusion with the quantity “effective dose.” Effective Dose: A calculated quantity that goes beyond equivalent dose by taking into account the variation in radi ...
... quantity is occasionally, but not commonly, used in discussing radiation from CT scans. It is preferable not to use it because of possible confusion with the quantity “effective dose.” Effective Dose: A calculated quantity that goes beyond equivalent dose by taking into account the variation in radi ...
spiral head ct in the evaluation of acute
... 2. Jayashankar A, Udayasankar U, Sebastian S, et al. MDCT of thoraco-abdominal trauma: an evaluation of the success and limitations of primary interpretation using MPR’s vs axial images. Emerg Radiol 2008; 15:29-34. 3. Strub WM, Leach JL, Tomsick T, Vagal A. Overnight preliminary head CT interpretat ...
... 2. Jayashankar A, Udayasankar U, Sebastian S, et al. MDCT of thoraco-abdominal trauma: an evaluation of the success and limitations of primary interpretation using MPR’s vs axial images. Emerg Radiol 2008; 15:29-34. 3. Strub WM, Leach JL, Tomsick T, Vagal A. Overnight preliminary head CT interpretat ...
Nuclear medicine
Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease. Nuclear medicine scans are usually conducted by radiographers. Nuclear medicine, in a sense, is ""radiology done inside out"" or ""endoradiology"" because it records radiation emitting from within the body rather than radiation that is generated by external sources like X-rays.