Erlemann R, Reiser M, Peters P E, Vassallo P, Härle A
Institut für Klinische Radiologie, Westfälische Wilhelms-Universität, Münster.
Rofo. 1988 Aug;149(2):178-83. doi: 10.1055/s-2008-1048319.
Delineation of neoplasms from normal tissue is possible using Flash sequences. These sequences prove useful in preoperative staging of bone tumours and soft tissue tumours. However, contrast between neoplastic and surrounding normal tissue is lower than in optimal selected spin-echo sequences. Flash-90 sequence is superior to Flash-10 sequence in the demonstration of intraosseous extension of predominantly sclerotic, calcified and purely fibrous tumours. In contrast, Flash-10 sequence proves superior for the demarcation of osteolytic tumours with minimal fibrous tissue content. Delineation of extraosseous tumour masses against muscle can best be achieved using Flash-90 sequence after intravenous administration of Gadolinium-DTPA. Flash-90 sequence enables sharp demarcation of extraosseous masses of bone tumours against surrounding fat, whereas Flash-10 sequence proves useful in the delineation of non-lipomatous soft tissue tumours against normal fat.
使用快速成像序列能够区分肿瘤组织与正常组织。这些序列在骨肿瘤和软组织肿瘤的术前分期中很有用。然而，肿瘤组织与周围正常组织之间的对比度低于最佳选择的自旋回波序列。在显示以硬化、钙化和纯纤维性为主的肿瘤的骨内扩展方面，快速成像90°序列优于快速成像10°序列。相比之下，快速成像10°序列在界定纤维组织含量极少的溶骨性肿瘤方面表现更佳。静脉注射钆喷酸葡胺后，使用快速成像90°序列能够最好地勾勒出骨外肿瘤肿块与肌肉的界限。快速成像90°序列能够清晰地界定骨肿瘤的骨外肿块与周围脂肪的界限，而快速成像10°序列在区分非脂肪瘤性软组织肿瘤与正常脂肪方面很有用。
