Dec 14, 2014 · The MRI protocol for examination of the lumbar spine in patients with symptoms of nerve compression is quite simple. Basically we rely on the sagittal T1W- and T2W-images and correlate the findings with the transverse T2W-images of the levels of suspected pathology.

If your doctor suspects that you may have a herniated nucleus pulposus (HNP), an MRI might be used to evaluate your condition. HNP means the gel-like center of a disc has leaked through a tear in the tough outer wall of the disc.

Sep 1, 2024 · MRI. high content of water which gives a normal disc its characteristic high T2 signal on MRI. generalized loss of high T2 signal in the disc is due to age-related disc desiccation. a linear T2 hypointense signal through a disc in a young person may be a normal variant called an "intranuclear cleft", a band of fibrous tissue through the nucleus ...

Dec 1, 1993 · The acute lumbar herniated nucleus pulposus (HNP), can often be diagnosed on good quality MRI or CT examination. Myelography, discography, and postmyelography/postdiscography CT ordinarily are reserved for equivocal and protracted cases.

Jun 30, 2023 · MRI clearly provides the most information—perhaps too much, in that it has a 25% false-positive rate (asymptomatic herniated nucleus pulposus [HNP]). An HNP that is noted on imaging studies...

Aug 9, 2022 · MRI exquisitely delineates herniated nucleus pulposus (HNP) and its relationship with adjacent soft tissues. On MRI, HNPs appear as focal, asymmetric protrusions of disk material beyond...

Jun 30, 2023 · The symptoms due to herniated nucleus pulposus (HNP) can ultimately be attributed to the significant inflammatory response it generates inside the spinal canal. Disk...

Lumbar disc herniation (herniated nucleus pulposus [HNP]), or an extrusion of the nucleus pulposus intruding into the lumbar spinal canal, has been proposed as the most frequent cause of lower back pain. 1 Herniation magnitude can vary from small protrusion to complete annular tear and disc sequestration. 2 Herniations can cause spinal stenosis ...

The diagnostic accuracy of MRI for nerve root compression due to HNP was evaluated in two studies (n = 128) with prior probabilities of 77.9% and 93.9% . The results demonstrated a high sensitivity of 81 and 92% with varying specificity of 52 and 100%.

The accuracy of computed tomography (CT), myelography, CT-myelography (myelo-CT) and magnetic resonance imaging (MRI) for the diagnosis of lumbar herniated nucleus pulposus (HNP) is compared prospectively in 59 patients, all of whom underwent surgical exploration.