Cardiac CT is one of the most useful techniques in evaluating the origin and course of anomalous coronary arteries. It is very important in determining the relationship of the coronary artery to the aorta and the pulmonary artery. It can also detect aneurysm of the pulmonary artery (below) and of the aorta. The pulmonary artery is dilated and
The 128-slice dual-source CT (DSCT) has ~2 vertical tube detector systems, a rotation time of up to 280 msec and a table-moving speed of up to 45.8 cm/sec. These physical characteristics can significantly reduce the radiation dose and the amount of contrast agent required ( 8 , 9 ).
0.5 mm x 128 slices 0.5 0.5 64 slices 0.5 0.5 Conventional Scan Temporal Bone: Double-slice reconstruction using coneXact technology provides exceptional spatial resolution, as demonstrated in these axial images of the inner ear. Without Double-Slice Technology With Double-Slice Technology Double-slice reconstruction technology provides full
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Each time the x-ray source completes one full rotation, the CT computer uses sophisticated mathematical techniques to construct a 2D image slice of the patient. The thickness of the tissue represented in each image slice can vary . depending on the CT machine used, but usually ranges from 1-10 millimeters. When a full slice is completed, the image
High contrast of left ventricular myocardium achieved on Biograph mCT leads to sharp definition of ventricular walls and ischemic segments in an obese patient. Biograph mCT PET/CT. PET. Scan acquisition: 200 x 200 matrix, OSEM3D 4i24s. Scan time: 6 minutes. Injected dose: Fludeoxyglucose F 18 ( 18 F FDG) Injection [a] 20 mCi (740 MBq) CT.
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128 slice ct scan meaning