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1、上腹部CT讀片指上腹部CT讀片指Company Logo CT 讀片原則 CT 讀片時(shí)較一般X 線讀片要復(fù)雜,因?yàn)镃T 圖像是人體的橫斷面,同時(shí)又有掃描部位與層次問題,微小病變也有遺漏的可能,讀片時(shí)亦應(yīng)參考平片、MRI、US等影像檢查,互補(bǔ)其不足,發(fā)揮各種檢查方法的特長(zhǎng),有利于診斷。 1. 1 掃描位置與層次的判斷 首先了解人體橫斷面解剖觀察掃描圖像位置是否正確,各臟器是否包括,掃描計(jì)劃是否恰當(dāng)。 1. 2 窗寬與窗位是否正確 掃描后進(jìn)行攝片時(shí)應(yīng)采取各部位標(biāo)準(zhǔn)窗寬與窗位,必要時(shí)依病變不同選取顯示最佳窗寬與窗位。如不正確有可能使病變不能顯示或顯示不佳。 平掃與增強(qiáng)2上腹部CT讀片指Company

2、 Logo 1. 3 讀片時(shí)仔細(xì)觀察首先了解是平描或增強(qiáng)掃描(注射碘水造影劑) 1. 4 詳細(xì)閱讀圖像及資料 要了解機(jī)器掃描條件、病人資料、檢查日期以及某某醫(yī)院等等,作為診斷的參考。 1. 5 異常影像的觀察 如發(fā)現(xiàn)異常影像時(shí),則要對(duì)病變影像的部位、大小與數(shù)目、邊緣、密度、內(nèi)部結(jié)構(gòu)以及與周圍的關(guān)系等作詳細(xì)觀察。如為復(fù)查則需對(duì)病變的動(dòng)態(tài)進(jìn)行描述。 1. 6 分析與判斷 發(fā)現(xiàn)異常影像,對(duì)影像作全面的分析、推理,最后作出判斷。診斷的基礎(chǔ)是首先了解正常影象解剖,并對(duì)各種疾病的病理變化有深入的了解,再結(jié)合病史、主訴,不難作出正確的判斷。3上腹部CT讀片指Company Logo4上腹部CT讀片指Comp

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