Recruitment

Recruitment Status
Recruiting
Estimated Enrollment
70

Summary

Conditions
  • Atheroscleroses, Cerebral
  • Ischemic Stroke
Type
Observational
Design
Observational Model: Case-OnlyTime Perspective: Prospective

Participation Requirements

Age
Between 18 years and 80 years
Gender
Both males and females

Description

The investigator has conducted extensive research on ICAD by transcranial Doppler ultrasound, CT angiography and perfusion studies, magnetic resonance imaging (MRI) and digital subtraction angiography (DSA) respectively. Currently, the investigator applied 3-dimensional rotational angiogram (3DRA), ...

The investigator has conducted extensive research on ICAD by transcranial Doppler ultrasound, CT angiography and perfusion studies, magnetic resonance imaging (MRI) and digital subtraction angiography (DSA) respectively. Currently, the investigator applied 3-dimensional rotational angiogram (3DRA), a selective intra-arterial catheter-based imaging technique that had a superior spatial resolution compared with CT, MRI or DSA in depicting minute (<3mm) angio-architecture. Through 3DRA, the investigator could appreciate the ICAD patho-anatomy from a near-infinite number of planes, analyzing the stroke mechanisms and morphological changes with much improved precision. A neuro-radiologist and a stroke neurologist blind to time sequence will measure the geometric parameters and the luminal narrowing by WASID method.

Tracking Information

NCT #
NCT03295773
Collaborators
Not Provided
Investigators
Principal Investigator: Thomas Wai Hong LEUNG, FRCP Chinese University of Hong Kong