Clinical Study

Value of Transvaginal Two-Dimensional Contrast-Enhanced Ultrasonography in Diagnosing Atypical Ovarian Corpus Luteum Hematoma

Table 2

Grading perfusion intensity by contrast-enhanced ultrasound.

Grade 1Slight enhancementPerfusion within the mass but significantly lower enhancement compared with surrounding tissues
Grade2Moderate enhancementPerfusion within the mass with similar enhancement compared with surrounding tissues
Grade 3High enhancementPerfusion within the mass and significantly higher enhancement compared with surrounding tissues, similar to or higher than the perfusion intensity of iliac vessels