MR Spectroscopy

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Case 1: Recurrent Glioma

Case History:

39 year female with recurrent oligodendroglioma. Post-surgery/ RT / TMZ in 2009.Recent MRI shows an enhancing lesion. FDG PET MRI was done for evaluation.

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Findings:

MR spectroscopy in the same case discussed at page no.96 showed increased perfusion, also showed an increase in choline: creatine and choline: NAA ratios supporting the diagnosis of neoplasia more than radiation effects.

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Case 2: Characterization of Liver Lesions on DWI

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Case History:

In another patient treated for recurrent right frontotemporal oligoastrocytoma developed an enhancing lesion in follow up MRI. Simultaneous PET/MRI was done for evaluation.

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Findings:

MRS in the patient discussed on page no. 96 showed no significant increased choline: creatine or Choline: NAA ratios favoring radiation necrosis.

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Case 3: Ca Prostate

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Case History:

69 year female with raised serum PSA having T2 hypointense lesion in B/L peripheral gland.

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Findings:

A) Axial PSMA PET MR fused B, D ) Axial and sagittal high-resolution T2 and C)ADC map reveals a T2 hypointense nodular lesion with increased PSMA uptake and restricted diffusion.

MRS in this patient with Ca prostate shows increased Choline+Creatine: Citrate ratios favoring malignancy.

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Case Study Prepared by:

This short PET-MRI Scan case was compiled by Dr. Sangeeta Taneja and Dr. Amarnath Jena (Nuclear Medicine Physician at PET-Suite @ Indraprastha Apollo Hospital, Sarita Vihar).

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Read More about PET-MRI Scan at House Of Diagnostics in Delhi and NCR.

The Simultaneous PET-MRI Scan is currently offered at PET-Suite at Apollo Hospital, Sarita Vihar.

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