To assess the value of three-dimensional (3D) contrast-enhanced (CE) magnetic resonance pulmonary angiography (MRPA) with liver acceleration volume acquisition (LAVA) in the detection of acute pulmonary embolism (PE). Thirty-two patients with symptoms indicative of acute PE underwent both CT pulmonary angiography (CTPA) and MRPA within 4 hours. Three of the patients were excluded from the final...

BACKGROUND Hydration to prevent contrast-induced acute kidney injury (CI-AKI) induces a diagnostic delay when performing computed tomography-pulmonary angiography (CTPA) in patients suspected of having acute pulmonary embolism. AIM To analyze whether withholding hydration is non-inferior to sodium bicarbonate hydration before CTPA in patients with chronic kidney disease (CKD). METHODS We pe...

Pulmonary embolism (PE) remains a challenge for any physician because its clinical presentation covers a broad spectrum and is often similar to other cardio-pulmonary disorders. PE is still under-diagnosed due to it’s various/atypical clinical presentations, the dynamic of embolic processes and due to the fact that we have several diagnostic methods without 100% sensitivity and specificity. Abo...

This prospective study was designed to assess CT performance by using the task-based image quality assessment and identify influence of iterative reconstruction (IR) algorithm, tube potential pitch factor selection on dose during Computed Tomography Pulmonary Angiography (CTPA) examination. An phantom, Catphan-600 utilized in this for assessing CTPA protocols under 128-multislice scanner (Phili...

Background: The aim of the present study was to evaluate the utilization and diagnostic yields of CT pulmonary angiography (CTPA) using the Revised Geneva score and Wells’ criteria, in patients with suspected pulmonary embolism (PE).    Methods: One hundred and twelve adult patients underwent CTPA for suspected PE were participated in this study. The outcome was positive or neg...

Zhonghua Sun1* and Jing Lei2 1Department of Medical Radiation Sciences, Curtin University, Perth, Western Australia, 6845, Australia 2Department of Medical Imaging, First Affiliated Hospital of Kunming Medical University, Yunnan, 650032, China *Author for correspondence: Tel: +61892667509 Fax: +61892662377 E-mail: [email protected] Submitted: August 18, 2017 Accepted: September 13, 2017 Publi...

BACKGROUND Pulmonary embolism (PE) is associated with high morbidity and mortality. Effective intervention requires prompt diagnosis. Computed tomography pulmonary angiography (CTPA) is sensitive and specific for PE and is the investigation of choice. Inappropriate CTPA utilisation results in unnecessary high radiation exposure and is costly. State-of-the-art electronic radiology workflow can p...

Objectives. We conducted a study to answer 3 questions: (1) is CT pulmonary angiography (CTPA) overutilized in suspected pulmonary embolism (PE)? (2) What alternative diagnoses are provided by CTPA? (3) Can CTPA be used to evaluate right ventricular dilatation (RVD)? Methods. We retrospectively reviewed the clinical information of 231 consecutive emergency department patients who underwent CTPA...

OBJECTIVE Evaluation of a new iterative reconstruction algorithm (IMR) for detection/rule-out of pulmonary embolism (PE) in ultra-low dose computed tomography pulmonary angiography (CTPA). METHODS Lower dose CT data sets were simulated based on CTPA examinations of 16 patients with pulmonary embolism (PE) with dose levels (DL) of 50%, 25%, 12.5%, 6.3% or 3.1% of the original tube current sett...