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MR PET

(Magnetic Resonance Proton Enhancement Tomography)
WHOLE BODY DIFFUSION WEIGHTED IMAGING

  • NO RADIATION
  • NO CONTRAST
  • BETTER TISSUE CHARACTERIZATION
  • NOT METABOLISM RELATED
  • ACCURATE, FAST
  • LESS EXPENSIVE

BENIGN LESIONS

LESS CELLS
FREE WATER MOVEMENT

WEEK SIGNALS in MRI

MALIGNANT TUMOR

More Cells, More Membranes
More Nuclear Material, Restricted Diffusion
Water Accumalation

WEEK SIGNALS in MRI

PATHOGENESIS OF MALIGNANCY and MR PET as a Diagnostic Modality

In malignant tissues highly cellular environment with dense membranes and increased nuclear components restrict diffusion of water molecules (protons). The accumulation of water protons enhances signals from water protons. This is the basic principle behind Diffusion Weighted MR Imaging, commonly known as MR Proton Enhancement Imaging (MR PET Imaging). In benign tissues water protons are freely diffusible and the signals in Diffusion Weighted Imaging will be week

PET CT Vs MR PET

Evaluation Parameters

  • Accuracy
  • Basic Principles
  • Structural Evaluation by
  • CT Radiation
  • Isotope Radiation
  • Contrast
  • Injections
  • Preparation
  • Cost

PET CT

  • 90~95%
  • Glucose Utilization
  • CT
  • 20-25 mSv
  • 8 msv
  • 80-100ml
  • IV
  • Fasting etc
  • EXPENSIVE

MR PET

  • 90~95%
  • Cellularity/ Membrane density
  • MRI
  • Nil
  • Nil
  • Nil
  • Nil
  • Minimal
  • LESS EXPENSIVE

MR PET of Spine:

  • Benign Lesion

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  • Malignant Lesion

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MR PET of Liver:

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MR PET in RENAL Ca:

BRONCHOGENIC Ca

MR PET of Breast

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MR PET in Ca Prostate

Cervical Lymphadenopathy

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