Fluorescein angiography especially of the upper extremities

Area of Science:

• Vascular Medicine
• Diagnostic Imaging
• Medical Technology

Background:

• Assessing upper extremity arterial blood flow is crucial for diagnosing conditions like Raynaud's phenomenon and evaluating surgical outcomes.
• Existing methods may lack the sensitivity or comprehensive overview needed for detailed circulatory assessment.
• Understanding macro- and microcirculation interactions is key to effective vascular disease management.

Purpose of the Study:

• To describe and validate a sequential fluorescein angiography technique for upper extremities.
• To demonstrate the method's applicability in diagnosing arterial occlusions and evaluating treatment efficacy.
• To highlight the importance of standardized conditions for reliable results.

Main Methods:

• Sequential fluorescein angiography was performed on upper extremities.
• Standardized experimental conditions, including controlled vasodilatation, were emphasized.
• The method was applied to assess diagnoses, surgical interventions, and pharmacological treatments.

Main Results:

• The technique proved sensitive and reproducible for evaluating arterial blood flow.
• It effectively differentiated between macrovascular occlusions and microvascular obstruction.
• Prolonged fluorescence appearance time indicated macrovascular issues, while altered patterns showed microvascular damage.

Conclusions:

• Sequential fluorescein angiography provides valuable functional information on skin blood flow in extensive areas.
• The method aids in understanding macro- and microcirculation interplay.
• It represents a significant advancement for clinical diagnosis and treatment evaluation in vascular diseases.