Radiology & Imaging

AI helps detect brain aneurysms on CT angiography

A powerful type of artificial intelligence known as deep learning can help physicians detect potentially life-threatening cerebral aneurysms on CT angiography, according to a study published in the journal Radiology.

Cardiology

Oral radiography can reveal chronic coronary artery disease

The calcification of the carotid artery is a sign of advanced arteriosclerosis, which may be associated with chronic coronary artery disease (CAD) and can lead to death. Such calcification can be seen in regular oral panoramic ...

Cardiology

Guidelines detail how to manage aneurysms of visceral arteries

(HealthDay)—In evidence-based clinical practice guidelines, issued by the Society for Vascular Surgery and published in a supplement to the July issue of the Journal of Vascular Surgery, recommendations are presented for ...

Diseases, Conditions, Syndromes

ST-segment elevation described in patients with COVID-19

(HealthDay)—For patients with COVID-19 who have ST-segment elevation, indicating potential acute myocardial infarction, there is considerable variability in presentation, and prognosis is poor, according to a letter to ...

Cardiology

Is it bloating or is it a heart attack?

A patient in the hospital for metastatic Hodgkin lymphoma with significant abdominal distention displayed sudden onset of ST-segment elevations—often an indicator of a heart attack—however the heart attack symptoms improved ...

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Angiography

Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins and the heart chambers. This is traditionally done by injecting a radio-opaque contrast agent into the blood vessel and imaging using X-ray based techniques such as fluoroscopy.

The word itself comes from the Greek words angeion, "vessel", and graphein, "to write or record". The film or image of the blood vessels is called an angiograph, or more commonly, an angiogram. Though the word itself can describe both an arteriogram and a venogram, in its everyday usage, the terms angiogram and arteriogram are often used synonymously, whereas the term venogram is used more precisely.

The term angiography is strictly defined as based on projectional radiography; however, the term has been applied to newer vascular imaging techniques such as CT angiography and MR angiography. The term isotope angiography has also been used, although this more correctly is referred to as isotope perfusion scanning.

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