[CT x-ray evaluation of abdominal and pelvic veins in patients suspected of acute pulmonary embolism with negative Doppler sonography].
[CT x-ray evaluation of abdominal and pelvic veins in patients suspected of acute pulmonary embolism with negative Doppler sonography].
复制标题
多普勒超声阴性疑似急性肺栓塞患者腹腔和盆腔静脉的CT X线评估
作者：
G. Ferretti;D. Ayanian;Y. Ranchoup;F. Thony;J. Bosson;M. Coulomb
目的
前瞻性地探讨腹部和骨盆CT显示疑似急性肺栓塞患者深静脉血栓形成的潜力，并对肺动脉进行螺旋CT检查。
材料和方法
纳入了197例非诊断性下肢动脉造影和下肢和IVC多普勒超声阴性的患者。他们进行了肺动脉螺旋CT扫描（5 mm准直，1：1螺距，每2.5mm重建一次，以3 mL/sec的速度注射120 mL造影剂）。胸部采集结束后90秒，采集腹部和盆腔CT（每12 mm准直7 mm）。
结果
197例患者中有3例（1.5%）发生了未知的腔静脉系统血栓形成（肾静脉、卵巢静脉、紫丁香静脉）。第4例患者肠系膜静脉血栓形成原因不明。所有患者均发生肺栓塞（4/40）。157例螺旋CT检查无肺栓塞的患者均未发现深静脉血栓形成。
结论
在我们的研究中，腹部和骨盆的CT显示了腹部和骨盆深静脉的未知血栓形成，可以解释7.5%患者的肺栓塞。
PURPOSE
To address prospectively the potential of CT of the abdomen and pelvis to demonstrate deep vein thrombosis in patients suspected of acute pulmonary embolism and investigated with helical CT of the pulmonary arteries.
MATERIAL AND METHODS
197 patients presenting non-diagnostic scintigraphy and negative Doppler US of lower limbs and IVC were included. They had helical CT of the pulmonary arteries (5mm collimation, 1:1 pitch, reconstruction every 2.5 mm, injection of 120 mL of contrast media at a rate of 3 mL/sec). Ninety seconds after the end of the thoracic acquisition, abdominal and pelvic CT were acquired (7 mm collimation every 12 mm).
RESULTS
3 (1.5%) of 197 patients had an unknown thrombosis of the caval system (renal vein, ovarian vein, lilac veins). A fourth patient had an unknown thrombosis of the mesenteric vein. All these patients had a pulmonary embolism (4/40). None of the 157 patients without pulmonary embolism at helical CT showed deep venous thrombosis.
CONCLUSION
In our study, CT of the abdomen and pelvis disclosed an unknown thrombosis of a deep vein of the abdomen and pelvis that can explain the pulmonary embolism in 7.5% of patients.