OCT in Borderline Coronary Artery Lesions
OCT in Borderline Coronary Artery Lesions
To find out the safety and efficacy of Optical Coherence Tomography (OCT) in the evaluation
 and treatment of angiographically borderline coronary artery lesions in a Chinese population,
 and to compare the effectiveness of OCT versus SPECT in treating such subjects. All the
 participants included in the study will be those that are found to have borderline coronary
 artery lesions on coronary angiography, in whom the investigators feel that OCT will be
 useful to assess whether PCI will be of benefit to the treatment of the lesion pathology, or
 whether optimal medical therapy is the most appropriate treatment modality. Those
 participants who declined OCT will be offered SPECT as an alternative method to assess and
 treat the borderline coronary artery stenosis.

 It is estimated that OCT guided "PCI or not" has a non-inferiority to SPECT's in the
 borderline coronary artery stenosis.
Inclusion Criteria:

 -  The inclusion criteria for this study will be only those participants in whom
 diagnostic coronary angiography revealed borderline coronary artery lesion. These
 participants will undergo the OCT procedure, or alternatively ECT.

 Exclusion Criteria:

 -  Exclusion criteria will be those participants with previous cardiogenic shock, stroke,
 renal dysfunction, and acute or chronic total occlusion coronary lesions.