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A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
Published on: September 16, 2017
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Ischaemic brain changes associated with catheter-based diagnostic cerebral angiography: a diffusion-weighted imaging
Turkan Ikizceli1, Halil Donmez2, Servet Kahveci3
1Haseki Training and Research Hospital, Istanbul, Turkey.
Polish Journal of Radiology
|September 27, 2021
Summary
Diagnostic cerebral angiography can cause silent embolic cerebral infarctions, particularly in older patients. Diffusion-weighted imaging (DWI) is recommended routinely to detect these microemboli.
Area of Science:
- Neurology
- Radiology
- Vascular Imaging
Background:
- Cerebral angiography is a common diagnostic tool.
- Silent cerebral infarctions can result from the procedure.
- Identifying risk factors is crucial for patient safety.
Purpose of the Study:
- To determine the incidence of silent embolic cerebral infarctions after diagnostic cerebral angiography.
- To identify associated risk factors for these infarctions.
Main Methods:
- Prospective evaluation of 71 patients undergoing cerebral digital subtraction angiography.
- Diffusion-weighted imaging (DWI) performed before and after angiography.
- Analysis of various potential risk factors including patient demographics, vessel disease, and procedural details.
Main Results:
- Seven out of 71 patients (9.8%) developed 13 new silent ischemic lesions.
- Lesions were typically 6-10mm in diameter.
- Patient age was a significant risk factor (p < 0.05); other factors showed no significant correlation.
Conclusions:
- Meticulous performance of angiographic procedures is advised, especially in elderly patients.
- Routine DWI post-angiography is recommended to detect microemboli, regardless of neurological findings.
- This approach aids in evaluating microemboli and clinical outcomes.
