Haldemann R C, Krestin G P, Duewell S, Marincek B, von Schulthess G K, Saadi-Elmandjra M, Fuchs W A
Department für Medizinische Radiologie, Universitätsspital Zürich.
Rofo. 1993 Feb;158(2):127-32. doi: 10.1055/s-2008-1032617.
The fast spin echo (FSE) technique leads to time saving by individual phase coding of several spin echoes within one repetition interval. The new sequencing was compared quantitatively and qualitatively with conventional spin echo sequences in 30 patients with gynaecological pelvic disease. The signal-to-noise ratio was higher on FSE images in all tissues but to a variable degree. This led to an increased contrast-to-noise ratio, particularly between fat and solid structures, and to a reduction in the contrast between fat and fluid. Artifacts were reduced in FSE sequences leading to improved image quality in 83% and increased diagnostic information in 10%. This is of particular advantage when using time consuming T2-weighted sequences, which are necessary for the examination of the female pelvis.
快速自旋回波（FSE）技术通过在一个重复间隔内对多个自旋回波进行单独相位编码来节省时间。对30例患有妇科盆腔疾病的患者，将这种新的序列与传统自旋回波序列进行了定量和定性比较。在所有组织中，FSE图像上的信噪比均较高，但程度各不相同。这导致了对比噪声比的增加，特别是在脂肪与实体结构之间，同时脂肪与液体之间的对比度降低。FSE序列中的伪影减少，83%的图像质量得到改善，10%的图像诊断信息增加。在使用耗时的T2加权序列时，这具有特别的优势，而T2加权序列对于女性盆腔检查是必要的。
