Purpose: To assess the reliability of spiral computed tomographic (CT) angiography of the pulmonary arteries in the diagnosis of pulmonary embolism (PE).
Materials And Methods: One hundred forty-nine patients clinically suspected of having PE underwent spiral CT angiography and ventilation-perfusion (V-P) scintigraphy. Pulmonary angiography was also performed when the results of the V-P scan were indeterminate. Imaging results of spiral CT angiography were compared and validated against a normal perfusion scan in 40 patients, a high-probability scintigram in 53 patients, and a pulmonary angiogram in 56 patients.
Results: Spiral CT angiograms were of satisfactory diagnostic quality in all 149 patients. The sensitivity of spiral CT angiography for the detection of PE was 94% (64 of 68 patients) (observer 1) and 82% (56 of 68 patients) (observer 2), and the specificity was 96% (78 of 81 patients) (observer 2). Good interobserver agreement was obtained for spiral CT angiographic results (kappa = .774). Spiral CT angiography proved to be effective in the detection of PE in pulmonary arteries up to the segmental level but not in the smaller subsegmental branches. Isolated subsegmental PE accounted for three false-negative spiral CT angiographic results for both observers.
Conclusion: Spiral CT angiography is an accurate method for the detection and exclusion of PE, with the exception of isolated subsegmental PE.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1148/radiology.201.2.8888242 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
[Analysis of 41 cases of myocardial infarction in children with coronary artery lesion after Kawasaki disease].
Zhonghua Er Ke Za Zhi
February 2025
Pediatric Heart Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102 China.
To analyze the clinical characteristics,diagnosis and treatment of pediatric myocardial infarction (MI) patients with coronary artery lesions (CAL) after Kawasaki disease (KD). Clinical data including baseline characteristics, KD and CAL information, clinical symptoms at MI onset, electrocardiogram (ECG) and imaging findings, MI treatment, and clinical outcomes of 41 MI patients with CAL after KD admitted to the Children's Hospital of Fudan University from January 2017 to August 2024 were analyzed retrospectively. (1) Demographic characteristics: a total of 41 patients were included (36 males and 5 females).
View Article and Find Full Text PDFPersistent proatlantal intersegmental artery: a consideration based on multi-slice spiral computed tomography angiography.
Surg Radiol Anat
December 2024
Department of Neurology, The Second People's Hospital of Banan District, Chongqing, 400042, China.
Background: Multi-slice spiral computed tomography (CT) angiography (MSCTA) has become the primary non-invasive image technique for evaluating cephalic and cervical vascular anatomy, especially vascular variant such as persistent carotid-basilar anastomosis. Persistent proatlantal intersegmental artery (PPIA) is an example of a rare persistent carotid-basilar anastomosis that deserves to be featured through this imaging technic.
Purpose: The aim of this study is to explore the imaging characteristics of the PPIA using MSCTA and to assess its clinical significance.
[Aortic Dissection In The Cardiology Department Of The Point G University Hospital (Mali): Cardiovascular Emergency About 4 Observations].
Mali Med
November 2024
Faculté de Médecine et d'Odonto-Stomatologie (FMOS) / Université des sciences, des Techniques et des Technologies de Bamako, MALI.
Article Synopsis
- * Immediate surgery is crucial for type A AD (affecting the ascending aorta) to reduce mortality, while type B AD (descending aorta) is generally managed with medication unless complications arise.
- * Case studies illustrate the severity of type A AD by showing fatal outcomes in two patients, while cases of type B had better results, emphasizing the need for increased awareness and improved healthcare policies for cardiovascular emergencies.
Endoscopic optical coherence tomography (OCT) is widely used in the detection of morphological alterations in luminal organs, which provides high-resolution, three-dimensional (3D) images of internal tissues. In most cases, lesions are revealed early by microvascular pathological changes in cavity tissues. There is a significant demand for the performance of endoscopic OCT angiography (OCTA) to visualize the superficial capillaries.
View Article and Find Full Text PDFApplication of Multi-Slice Spiral CT Renal Angiography Combined with Intraoperative Ultrasound in Laparoscopic Partial Nephrectomy.
J Coll Physicians Surg Pak
November 2024
Department of Urology, Affiliated Hospital of Hebei University, Baoding, China.
This study aimed to evaluate the clinical significance of multi-slice spiral CT renal angiography combined with intraoperative ultrasound in laparoscopic partial nephrectomy. Eighty patients were seen at the Affiliated Hospital of Hebei University from January 2021 to December 2022. The patients were divided into two groups, the experimental group and the control group, with 40 cases in each group.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!