This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genitourinary radiology, Subject name: Radiology
Imaging modality employed in PI-RAD repoing scheme for prostate glands is all except:- 
Select and explain. 
A. MR spectroscopy, B. Dynamic contrast enhancement, C. Diffusion weighted MRI, D. T2W imaging
A: MR spectroscopy
Answer: A: MR spectroscopy 
Explanation: PI-RADS is for prostate lesions based on multi-parametric MRI. It includes:- T2 weighted imaging for transitional zone of prostate - Diffusion weighted imaging/ADC score for peripheral zone of prostate- Dynamic contrast enhancement PI-RADS PI-RADS 1 = Very low (clinically significant cancer highly unlikely) PI-RADS 2 = Low (clinically significant cancer unlikely) PI-RADS 3 = Intermediate (clinically significant cancer equivocal) PI-RADS 4 = High (clinically significant cancer likely) PI-RADS 5 = Very high (clinically significant cancer highly likely)