This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fetal Skull and Maternal Pelvis, Subject name: Gynaecology & Obstetrics
CPD is best assessed by: 
Select and explain. 
A. CT scan, B. Ultrasound, C. Radio pelvimetry, D. Pelvic assessment
D: Pelvic assessment
Answer: D: Pelvic assessment 
Explanation: Ans. is d, i.e. Pelvic assessmentRef Dutta Obs. 9/e, p 329IOC for detecting CPD or pelvic assessment or adequacy is - MRI.Best method of detecting CPD-Trial of labor > MRI > manual pelvic assessment.Pelvic assessment is done at 37 weeks in primigravida and at the onset of labor in multigravida.