中樞神經(jīng)系統(tǒng)病變 骨、關(guān)節(jié)及肌肉系統(tǒng)病變 盆腔病變 腹部實(shí)質(zhì)性臟器病變 心臟、縱隔及胸腹壁病變 肺部病變
A.順磁性物質(zhì)的濃度 B.順磁性物質(zhì)的磁矩 C.順磁性物質(zhì)局部磁場(chǎng)的撲動(dòng)率 D.順磁性物質(zhì)結(jié)合的水分子數(shù) E.以上均是
A.T1縮短,T2縮短 B.T1縮短,T2延長(zhǎng) C.T1不變,T2縮短 D.T2不變,T2延長(zhǎng) E.T1延長(zhǎng),T2縮短