胸骨上窩主動(dòng)脈弓長(zhǎng)軸切面觀察要點(diǎn):①主動(dòng)脈各段的寬度,有無(wú)縮窄及夾層動(dòng)脈瘤形成。②確定主動(dòng)脈的走向,方位及有無(wú)畸形轉(zhuǎn)位等。③肺動(dòng)脈及其分支的寬度。④有無(wú)動(dòng)脈導(dǎo)管未閉(圖4-7)。圖4-7胸骨上窩主動(dòng)脈弓長(zhǎng)軸切面收縮期圖 (共 109 字) [閱讀本文] >>
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 胸骨上窩主動(dòng)脈弓長(zhǎng)軸切面觀察要點(diǎn):①主動(dòng)脈各段的寬度,有無(wú)縮窄及夾層動(dòng)脈瘤形成。②確定主動(dòng)脈的走向,方位及有無(wú)畸形轉(zhuǎn)位等。③肺動(dòng)脈及其分支的寬度。④有無(wú)動(dòng)脈導(dǎo)管未閉(圖4-7)。圖4-7胸骨上窩主動(dòng)脈弓長(zhǎng)軸切面收縮期圖 (共 109 字) [閱讀本文] >>