Added Value of Dual Energy CT Angiography in Assessment of Pulmonary Embolism | ||
| The Egyptian Journal of Hospital Medicine | ||
| Article 122, Volume 87, Issue 1, April 2022, Pages 1720-1725 PDF (501.79 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejhm.2022.229390 | ||
| Authors | ||
| Mona Hamed Ali* ; Mohamed Ahmed Denewar; Enas Mohamed Elfeky; Ahmed Fekry Salem | ||
| Abstract | ||
| Background: Pulmonary embolism (PE) is a common clinical condition being third on the list of cardiovascular causes of death. Computed tomography angiography (CTA) is considered the first-line imaging modality for suspected acute PE. Dual-energy computed tomography (DECT) has made it possible to simultaneously obtain angiographic CT imaging and pulmonary perfusion maps. The aim was to identify role of DECT angiography in diagnosing pulmonary embolism. Objective: This study aimed to evaluate accuracy of iodine perfusion maps in diagnosing pulmonary embolism using DECT scanner. To detect location of the small pulmonary emboli using iodine maps (segmental, sub segmental). Methods: This cross-sectional study was conducted at Radiology Department, Zagazig University Hospitals. This study included 18 cases with pulmonary embolism. The duration of the study ranged from 6-12 months. Results: Regarding per CT angiography findings, the current study showed that nine (50%) patients had pulmonary embolism at right lung, 7 (38.9%) patients had pulmonary embolism at left lung and found in both lungs in two (11.1%) patients. Pulmonary embolism was found in upper lobe in 44.4% patients, at lower lobe in 27.8% patients, at main pulmonary artery in 16.7% patients and at middle lobe in 11.1% patients. Regarding level of pulmonary embolism, Subsegmental level was the most common found (44.4%) followed by segmental level in 38.9% patients. 10 (55.6%) were occlusive, and 8 (44.4%) were non-occlusive. Regarding distribution of the studied patients concerning matched defect on iodine map, 8 (44.4%) patients had matched defect on iodine map. Conclusion: The iodine maps have an important effective role in detection of pulmonary embolism. | ||
| Keywords | ||
| Dual energy CT angiography; Conventional CT angiography; Pulmonary embolism | ||
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