Indocyanine green videoangiography methodological variations: review.

Area of Science:

• Neurosurgery
• Vascular Surgery
• Medical Imaging

Background:

• Indocyanine green videoangiography (ICGVA) is a common microsurgical tool for neurovascular conditions.
• Conventional ICGVA has limitations, including the need for exposed vasculature and additive filling patterns.

Purpose of the Study:

• To review and assess methodological variations of ICGVA in neurovascular pathology.
• To identify advancements and compare them to conventional ICGVA techniques.

Main Methods:

• Systematic review of 18 English-language studies on ICGVA in neurovascular pathology.
• Identification and analysis of four primary methodological variants of conventional ICGVA.

Main Results:

• Four variants identified: transient occlusion, intra-arterial catheter administration, endoscopic ICG collection, and quantitative fluorescence analysis.
• These variants aim to overcome conventional ICGVA limitations, offering potentially superior intraoperative information.

Conclusions:

• Methodological variations in ICGVA show promise for enhancing neurovascular surgery.
• Further comparative studies with larger patient cohorts are necessary to validate these advanced techniques against the gold standard.