Watemelon 发表于 2025-3-25 03:22:41
https://doi.org/10.1057/9781137012470d cases CT can provide useful additional information and replace invasive examination procedures. Despite limited spatial resolution (1–2 mm) and relatively long scan times (1–5 s), improved detail detectability is obtained by the summation-free representation of transverse sections and increased co高贵领导 发表于 2025-3-25 09:01:57
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pathology, and the mediasti num, with special sections dealing with tumours, the heart, and large vessels; the spine, which is of growing importance in clinical CT; and finally the pathol ogy of the musculoskeletal system in general, with special attention being paid to the developing field of orthopaedic C978-3-642-68538-5不理会 发表于 2025-3-26 10:59:25
Neck,golaryngeal structures necessitates a short scanning time. The narrowness of the fatty spaces and the small differences in density between muscles, vessels and nerves demand high spatial and densitometric resolution.轻率看法 发表于 2025-3-26 16:43:20
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Mediastinum,hiefly because their high scanning times permitted respiratory movements to have an adverse effect on spatial and densitometric resolution. The present systems, characterized by a pure rotary movement of the detection system and X-ray tube and by a great number of detectors, have seen a reduction in