Digital Subtraction Angiography (DSA): Basic Principles

Castillo, Maurício

doi:10.1002/9781118434550.ch14

Cited by 1 publication

(1 citation statement)

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“…In clinical practice, a combination of 2D and 3DRA are used to assess cerebrovascular blood flow. 2D-DSA gives flux information during the contrast-agent passage and 3DRA provides static anatomic information ( 49 , 50 ). This has led to the development of 4D-DSA, also named time-resolved 3DRA, combining 2D-DSA and 3DRA.…”

Section: Hemodynamic Imagingmentioning

confidence: 99%

Imaging Modalities for Intracranial Aneurysm: More Than Meets the Eye

Maupu

Lebas

Boulaftali

2022

Front. Cardiovasc. Med.

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Intracranial aneurysms (IA) are often asymptomatic and have a prevalence of 3 to 5% in the adult population. The risk of IA rupture is low, however when it occurs half of the patients dies from subarachnoid hemorrhage (SAH). To avoid this fatal evolution, the main treatment is an invasive surgical procedure, which is considered to be at high risk of rupture. This risk score of IA rupture is evaluated mainly according to its size and location. Therefore, angiography and anatomic imaging of the intracranial aneurysm are crucial for its diagnosis. Moreover, it has become obvious in recent years that several other factors are implied in this complication, such as the blood flow complexity or inflammation. These recent findings lead to the development of new IA imaging tools such as vessel wall imaging, 4D-MRI, or molecular MRI to visualize inflammation at the site of IA in human and animal models. In this review, we will summarize IA imaging techniques used for the patients and those currently in development.

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Section: Hemodynamic Imagingmentioning

confidence: 99%