The Medical and Surgical Practice of NaProTECHNOLOGY, 269-274, 2004
The sonographic ovulation classification is validated against targeted hormone profiles -- estradiol, LH, and serial post-Peak progesterone (P+3 through P+11) -- drawn at CrMS Peak-anchored time points rather than fixed calendar days. Hormone patterns corresponding to each sonographic category (e.g., absent LH surge in anovulation, progesterone rise without follicle rupture in LUF) confirm that ultrasound morphology reliably reflects the underlying endocrine disorder, establishing the biochemical legitimacy of the classification for clinical diagnosis.
Hilgers, T. W. (2004). Chapter 21: Disorders of Human Ovulation: Endocrine Validation of the Sonographic Classification System. *The Medical and Surgical Practice of NaProTECHNOLOGY*, 269-274.
Hilgers TW. Chapter 21: Disorders of Human Ovulation: Endocrine Validation of the Sonographic Classification System. The Medical and Surgical Practice of NaProTECHNOLOGY. 2004:269-274.