Computed tomography pulmonary angiography (CTPA) has become the gold standard imaging technique in the evaluation of patients with suspected pulmonary thromboembolism (PTE).1 PTE – acute or chronic – is confirmed on CTPA by filling defects in the pulmonary arteries. Several factors, whether technical or diseaseor patient-related, can result in a suboptimal, low-quality CTPA, which can be misint...

common variable immunodeficiency (cvid) is the most common symptomatic primary immunodeficiency disease, predisposing the patients to various tissue involvement and organ damage. here a 16-year-old boy is presented who was referred to our center with cough, dyspnea,cyanosis, and history of recurrent pneumonia. the diagnosis of cvid was made according to reduction all serum immunoglobulin levels...

Purpose: This paper aims to realize an analysis of available radio-imaging methods for outlining various forms of pulmonary embolism (acute or chronic) with highlights on the semiology and adequate medical indications. Methods: There are several types of radiological examinations used in the evaluation of pulmonary embolism such as perfusion scintigraphy V/Q, digital subtraction angiography, co...

  Solitary pulmonary nodule (SPN) is a frequent finding on the chest x-ray and computed tomography. Nuclear medicine techniques play an important role in the diagnosis and management of SPN. In the current review, we briefly will explain the different nuclear medicine modalities in this regard including positron emission tomography (PET) using 18-F-FDG, and 11-C-Methionine, and single photon em...

Takayasu`s arteritis is a well-known systemic disease that involves the aorta, major aortic branches, and pulmonary arteries. Conventional catheter angiography remains the gold standard for disease diagnosis, in correlation with clinical data and laboratory findings. Multislice computed tomography angiography (MSCTA) has the advantage of non-invasively providing the angiographic data and combin...

background vascular ring is less than 1% of congenital heart disease. double aortic arch (daa) is the most common form of it.  its detecting is important because of the effects of pressure on the esophagus and trachea. case report in this study, three children suffering from double aortic arch with symptoms of dysphagia and recurrent aspiration, which in two cases had led to cardiac arrest, wer...

Pulmonary arterial hypertension (PAH) is defined as a group of diseases characterized by a progressive increase in pulmonary vascular resistance leading to right ventricular failure and premature death. Recently, the diagnostic approach has been more clearly defined according to the new clinical classification and with consensus reached on algorithms of various investigative tests and procedure...