MR angiography 読影の実際
1994 年 22 巻 3 号 p. 169-176
詳細
1994 年 22 巻 3 号 p. 169-176
Technical advances in magnetic resonance angiography (MRA) are now rapidly progressing. Its spatial resolusion, however, remains lower than that of a conventional angiography. Nevertheless, clinical use of MRA in diagnoses of many vascular lesions in the central nervous system is considered to be established. In this report, we discuss diagnostic methods and problems on MRA of the brain and the neck from our recent experiences. It should be stressed that vascular images obtained by MRA are not those of vessels proper but of blood streams under the influence of a flow velocity.
