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Table 2 Modified Magnetic Resonance Imaging Pfirrmann Grading

From: Intervertebral disc degeneration induced by long-segment in-situ immobilization: a macro, micro, and nanoscale analysis

Grade

Structural Changes Within NP

Signal Intensity

IVDH

I

Homogenous and bright

Hyperintense

Normal

II

Heterogeneous

Intermediate

Normal

III

Heterogeneous and gray

Intermediate

Decreased

IV

Heterogeneous and black

Hypointense

Decreased or collapsed

  1. NP indicates nucleus pulposus, IVDH indicates Intervertebral Disc Height
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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