Novalis Tx™ image-guided radiosurgery linear accelerator
... 3.4 Patented Non-Contacting Energy Switch: In each of the X-ray treatment modes where this is ...
... 3.4 Patented Non-Contacting Energy Switch: In each of the X-ray treatment modes where this is ...
The Bioimpedance Technique in Respiratory
... clinical routine. Criticism has been expressed, for example, about the inadequacy of chest wall motion-based gating methods to follow lung motion [79] and inconsistency in gating [45]. On the other hand, direct airway measurements have been criticized for low patient tolerability [106]. In addition, ...
... clinical routine. Criticism has been expressed, for example, about the inadequacy of chest wall motion-based gating methods to follow lung motion [79] and inconsistency in gating [45]. On the other hand, direct airway measurements have been criticized for low patient tolerability [106]. In addition, ...
AMERICAN ACADEMY OF NEUROLOGY NEUROIMAGING
... technical/basic aspects of imaging. This may require formal lectures given by imaging scientists and independent study. Clinical aspects include normal anatomy, artifacts, and disease states. Contents are listed by topic according to modality in the Appendix. Prerequisites for the trainee: Neuroimag ...
... technical/basic aspects of imaging. This may require formal lectures given by imaging scientists and independent study. Clinical aspects include normal anatomy, artifacts, and disease states. Contents are listed by topic according to modality in the Appendix. Prerequisites for the trainee: Neuroimag ...
Multimodality Assessment of Brain Tumors and Tumor Recurrence
... rain tumors are newly formed alterations of morphology, and for their diagnosis, therefore, CT or MRI is mandatory. These imaging modalities are essential for delineating the normal and pathologic anatomy and also for assessing vascular supply and impairment of the blood–brain barrier (BBB) (perfusi ...
... rain tumors are newly formed alterations of morphology, and for their diagnosis, therefore, CT or MRI is mandatory. These imaging modalities are essential for delineating the normal and pathologic anatomy and also for assessing vascular supply and impairment of the blood–brain barrier (BBB) (perfusi ...
09. Quality Assurance in Paediatric Radiological - RPOP
... • An ongoing QA programme, using the team approach, should be employed • It is essential that the results from QC assessments be integrated into the work of the management of the department, so that the findings are noted and acted on • QA program directed at equipment and operator performance can b ...
... • An ongoing QA programme, using the team approach, should be employed • It is essential that the results from QC assessments be integrated into the work of the management of the department, so that the findings are noted and acted on • QA program directed at equipment and operator performance can b ...
PACS: Then and Now (… and Tomorrow !)
... Integration of modalities beyond radiology into a single infrastructure – Visible light ...
... Integration of modalities beyond radiology into a single infrastructure – Visible light ...
ElectronBeam
... circumference of the body to the X-ray beam, the EBT X-ray beam enters from the back. Thus, anterior structures such as the breast and thyroid are subjected to a lesser dose of radiation (17% of the entrance skin dose). ...
... circumference of the body to the X-ray beam, the EBT X-ray beam enters from the back. Thus, anterior structures such as the breast and thyroid are subjected to a lesser dose of radiation (17% of the entrance skin dose). ...
The “Penumbra Sign” on Magnetic Resonance Images of Brodie`s
... center, two rings and a peripheral halo (5). The “penumbra sign” is comprised of four sections; namely, a central core which represents the abscess cavity is composed of a high protein component and appears as low signal intensity on T1-weighted and high on T2-weighted and STIR images; the first lay ...
... center, two rings and a peripheral halo (5). The “penumbra sign” is comprised of four sections; namely, a central core which represents the abscess cavity is composed of a high protein component and appears as low signal intensity on T1-weighted and high on T2-weighted and STIR images; the first lay ...
The Evolution of Stereotactic Radiosurgery
... Definition of Stereotactic Radiosurgery (SRS) “A single high dose of radiation, stereotactically directed to an intra-cranial region of interest. May be from X-ray, gamma ray, protons or heavy particles.” -Lars Leksell, 1951 High dose of “ablative” radiation delivered to a target localized in 3-dim ...
... Definition of Stereotactic Radiosurgery (SRS) “A single high dose of radiation, stereotactically directed to an intra-cranial region of interest. May be from X-ray, gamma ray, protons or heavy particles.” -Lars Leksell, 1951 High dose of “ablative” radiation delivered to a target localized in 3-dim ...
Standardized volumetric 3D-analysis of SPECT/CT imaging in
... photon emission computerized tomography (SPECT) as functional imaging, which provides 3D information about biological processes into a single imaging modality. The clinical utility of SPECT/CT imaging has been recognized in a variety of medical fields and most recently in orthopaedics; however, clin ...
... photon emission computerized tomography (SPECT) as functional imaging, which provides 3D information about biological processes into a single imaging modality. The clinical utility of SPECT/CT imaging has been recognized in a variety of medical fields and most recently in orthopaedics; however, clin ...
Positron emission tomographic imaging with 11C
... including head and neck cancer, complementing or simply demonstrating greater accuracy than the morphological imaging modalities.3,4 The use of PET for the diagnosis of cancer in the human body is based on the unique capability of this technique to evaluate metabolic activity in neoplasm. The glucos ...
... including head and neck cancer, complementing or simply demonstrating greater accuracy than the morphological imaging modalities.3,4 The use of PET for the diagnosis of cancer in the human body is based on the unique capability of this technique to evaluate metabolic activity in neoplasm. The glucos ...
Image Guided Patient Setup
... patient to patient, and depend on the procedure for patient set-up, with or without immobilization, as can be seen from an excellent overview by Langen et al. [43]. For prostate patients, to give a typical example, it has been well established that this gland moves considerably between fractions, ma ...
... patient to patient, and depend on the procedure for patient set-up, with or without immobilization, as can be seen from an excellent overview by Langen et al. [43]. For prostate patients, to give a typical example, it has been well established that this gland moves considerably between fractions, ma ...
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.