| Angioscopy | Coronary arteriography | Intravascular ultrasound | Optical coherence tomography | |
| Color tone | Color | Black and white | Black and white | False color (eg, sepia) or black and white |
| Picture expression | 3-dimension | 2-dimension | 2-dimension | 2-dimension and 3-dimension |
| High resolution | ++ | + | + | +++ |
| Quantification | - | ++ | ++ | ++ |
| General picture | - | - | ++ | ++ |
| Tissue characterization | ||||
| Intraluminal | ++ | + | + | ++ |
| Intramural | - | - | ++ | + |
| Thrombus | ++ | + | - | +++ |
| Calcification | - | + | ++ | +++ |
| Plaque characterization | ++ | + | ++ | ++ |
