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首页> 外文期刊>Journal of research in medical sciences : >Qualitative evaluation of pulmonary CT angiography findings in pregnant and postpartum women with suspected pulmonary thromboembolism
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Qualitative evaluation of pulmonary CT angiography findings in pregnant and postpartum women with suspected pulmonary thromboembolism

机译：对怀疑有肺血栓栓塞的孕妇和产后妇女的肺部CT血管造影结果的定性评估

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Background: Considering the importance of using more appropriate imaging technique for accurate diagnosis of pulmonary thromboembolism (PTE) with less side effects, we aimed to evaluate the quality of pulmonary 64-multidetector computed tomographic (MDCT) angiography in pregnant and postpartum women with suspected PTE in Isfahan. Materials and Methods: In this descriptive study, radiological findings of pregnant and postpartum women with suspected PTE who underwent pulmonary 64-MDCT angiography were evaluated. Prevalence of PTE in pregnant and postpartum women, mean of pulmonary arteries density for right and left pulmonary arteries, and their lobar and segmental branches, diagnostic quality of the pulmonary arteries density and their scoring, frequency of diagnostic and nondiagnostic images, mean of radiation dose and mean of bolus time, and the correlation between the quality of the vascular density with the peak density of the pulmonary artery were determined. Results: In this study, 44 pregnant and postpartum women with suspected PTE were selected. The overall prevalence of PTE was 9.1% (4/44). PTE was diagnosed in 1 (3.7%) pregnant and 3 (17.5%) postpartum women (P = 0.14). Mean density of pulmonary trunk was 278.81 +/- 108.16 Hounsfield unit (HU) and 308.41 +/- 59.30 HU in pregnant and postpartum women, respectively. Mean of bolus timing, kilovoltage peak (kVp), tube current, and dose length product (DLP) were 12.53 +/- 2.36 s, 105.22 +/- 45.71 milliamperage (MA), 382.9 +/- 173.5 MA, and 317.98 +/- 78.92 mGy/cm, respectively. The rate of nondiagnostic images was 4.5%. Conclusion: Our findings indicated that pulmonary 64-MDCT angiography is an appropriate imaging method for diagnosing PTE in pregnant and postpartum women with suspected PTE. It seems that, using fast CT systems (64-MDCT), in accordance with high flow rate, high contrast medium concentration and low kVp could explain the obtained appropriate quality of images more efficiently than computed tomographic pulmonary angiography (CTPA).
机译：背景：考虑到使用更合适的影像学技术来准确诊断副作用较少的肺血栓栓塞症（PTE）的重要性，我们旨在评估疑似PTE的孕妇和产后妇女肺部64层螺旋CT血管成像的质量。在伊斯法罕。资料和方法：在这项描述性研究中，对接受了肺部64-MDCT血管造影检查的疑似PTE的孕妇和产后妇女的影像学检查进行了评估。孕妇和产后妇女的PTE患病率，左右肺动脉及其肺叶和节段分支的肺动脉密度平均值，肺动脉密度的诊断质量及其评分，诊断和非诊断性图像的频率，放射剂量的平均值测定推注时间的平均值，血管密度的质量与肺动脉峰值密度之间的相关性。结果：在这项研究中，选择了44名疑似PTE的孕妇和产后妇女。 PTE的总体患病率为9.1％（4/44）。在1名（3.7％）孕妇和3名（17.5％）产后妇女中诊断出PTE（P = 0.14）。孕妇和产后妇女的肺干平均密度分别为278.81 +/- 108.16 Hounsfield单位（HU）和308.41 +/- 59.30 HU。推注时间，千伏峰值（kVp），管电流和剂量长度乘积（DLP）的平均值分别为12.53 +/- 2.36 s，105.22 +/- 45.71毫安（MA），382.9 +/- 173.5 MA和317.98 + / -分别为78.92 mGy / cm。非诊断图像的发生率为4.5％。结论：我们的发现表明，肺64-MDCT血管造影是诊断孕妇和产后疑似PTE的妇女中PTE的合适影像学方法。看来，使用快速CT系统（64-MDCT），根据高流速，高造影剂浓度和低kVp，可以比计算机断层扫描肺血管造影（CTPA）更有效地解释获得的适当图像质量。

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