AIM To evaluate the feasibility of reducing the dose of iodinated contrast agent in computed tomography pulmonary angiography (CTPA). METHODS One hundred and twenty-seven patients clinically suspected of having pulmonary embolism underwent spiral CTPA, out of whom fifty-seven received 75 mL and the remaining seventy a lower dose of 60 mL of contrast agent. Both doses were administered in a mu...

BACKGROUND AND PURPOSE Right Ventricular to Left Ventricular (RV/LV) diameter ratio has been shown to be a prognostic biomarker for patients suffering from acute Pulmonary Embolism (PE). While Computed Tomography Pulmonary Angiography (CTPA) images used to confirm a clinical suspicion of PE do include information of the heart, a numerical RV/LV diameter ratio is not universally reported, likely...

OBJECTIVE The objective was to quantify the potential economic value of single-photon emission computed tomography (SPECT) with computed tomography (CT; SPECT/CT) versus CT pulmonary angiography (CTPA), ventilation-perfusion (V/Q) planar scintigraphy, and V/Q SPECT imaging modalities for diagnosing suspected pulmonary embolism (PE) patients in an emergency setting. METHODS An Excel-based simu...

OBJECTIVES To determine the diagnostic yield of computed tomography scanning of the pulmonary arteries (CTPA) in our centre and factors associated with it. Differences between specialties as well as adherence to protocol were investigated. METHODS All patients receiving a first CTPA for pulmonary embolism (PE) in 2010 were included. Data about relevant clinical information and the requesting ...

The authors are developing a computerized pulmonary vessel segmentation method for a computer-aided pulmonary embolism (PE) detection system on computed tomographic pulmonary angiography (CTPA) images. Because PE only occurs inside pulmonary arteries, an automatic and accurate segmentation of the pulmonary vessels in 3D CTPA images is an essential step for the PE CAD system. To segment the pulm...

BACKGROUND Pulmonary embolism has become the third most common cardiovascular disease, which can seriously harm human health. OBJECTIVES To investigate the diagnostic value of dual-source computerized tomography (CT) and perfusion imaging for peripheral pulmonary embolism. PATIENTS AND METHODS Thirty-two patients with suspected pulmonary embolism underwent dual-source CT exams. To compare t...

Introduction Computed tomography pulmonary angiography (CTPA) is the reference investigation of choice to diagnose embolism (PE). Nevertheless, use CTPA should be weighed against its risks, such as radiation and contrast-induced nephropathy. We aim assess yield in diagnosing PE at a tertiary centre Malaysia. also identify predictive factors associated with this cohort. Methods This was cross-se...

swine flue is a highly contagious acute respiratory disease caused by a subtype of influenza a virus. herein we present three patients with h1n1 infection complicated with pulmonary thromboembolism. the patients had chest pain and unexplained dyspnea. imaging studies showed bilateral hilar predominance. computed tomographic angiography confirmed bilateral thromboembolism (an unusual presentatio...