CT scan. Reviewed by Dr Melissa Hickson, specialist registrar in radiology What is a CT scanner? A CT (computerised tomography) scanner is a special kind of X-ray machine. Instead of sending out a single X-ray through your body as with ordinary X-rays, several beams are sent simultaneously from different angles. This allows more detailed images from within the body to be constructed, and these images are then interpreted by a doctor. CT scanners may also be referred to as CAT scans (computerised axial tomography). Unlike an MRI scanner, where you are placed within a tunnel, a CT scanner consists of a doughnut shaped machine and therefore you should not feel claustrophobic.
How does a CT scanner work? The X-rays from the beams are detected after they have passed through the body and their strength is measured. Beams that have passed through less dense tissue such as the lungs will be stronger, whereas beams that have passed through denser tissue such as bone will be weaker. What are CT scans used for? Principles of radiological physics. Oncology and Radiology Project Reports, Clinical Immunology Dissertation, Thesis, Oncology Working Papers, Radiology Research Papers.
Oncology and Radiology Project Reports, Clinical Immunology Dissertation, Thesis, Oncology Working Papers, Radiology Research Papers Prognostic Factors in Malignant Melanoma Because of the failure so far to find effective treatment for patients with advanced stages of melanoma, increasing efforts have been made to find prognostic factors identifying patients in the risk zone for development of metastasis.This thesis investigates the prognostic ... Alternative Methods for Assessment of Split Renal Function Living kidney donation is a clinical situation with unique features in the sense that healthy individuals voluntarily expose themselves to certain risks and inconveniences.
Therefore, eliminating as much of the associated discomfort as possible is crucial. The primary aim of ... Renal Artery Stenosis Renal artery stenosis (RAS) is a potentially curable cause of hypertension and azotemia. Chemosensitivity in Breast Cancer Assessment of Body Composition Using Magnetic Resonance Imaging. Radiology Physics. A 2-D diode array and analysis software for verification of intensity modulated radiation therapy delivery | Browse - Medical Physics. No data available.
Please log in to see this content. You have no subscription access to this content. No metrics data to plot. The attempt to load metrics for this article has failed. The attempt to plot a graph for these metrics has failed. A 2-D diode array and analysis software for verification of intensity modulated radiation therapy delivery Rent: Rent this article for Abstract An analysis is made of a two-dimensional array of diodes that can be used for measuring dose generated in a plane by a radiation beam.
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