TY - JOUR
T1 - Digital assessment of mri for lumbar disc desiccation
AU - Videman, T.
AU - Nummi, P.
AU - Battie, M. C.
AU - Gill, K.
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1994/1
Y1 - 1994/1
N2 - During magnetic resonance imaging, e vesi amount of digital data or anatomic structures is transited into Images, which are then assessed subjectively. Tha development of an abjective, sensitive method to directly assess the digital data would have clear benefits, par tiruiarly for clinical research on disc degeneration. The study goals were to develop a method üf digital as¬sessment of disc desiccation and to compare digital signal irtansity profiles with discographie patterns and macr03naiomlc findings. Proton density-weighted MBls were obtained from 45 males (9-77 years) and dlg:lal analysis was done with a freely selectable region of interest facility, The adjaeen: cerebrospinal fluid (CSFI was used as a reference for disc signel-intensily stores, and the disc to CSF^intensIty ratio provided "adjusted digital scorns." The CSF-adjustBd digital method yielded reproducible scores that correlated with the subjective assessments. However, the CS F-ad justed digital scores were more sensitive than the subjective assessments, dentlfying findings that otherwise were undetected in younger subjects, AdditiûnaÜy, 10 cadav* arie spines ware avalúa tea using MRI with T2 and proton densityweighted sequences, discography, and macroanatomic dissection. MRI disc-intensity profiles ware determined along a midsagittal line drawn through the disc. The profile of the digital scores along this line was then compared with discogrems and maeroanatomic sections. In all cases of disc degeneration on discograms, changes were present in the Intensity profile. Basad on both tha living subjects and the ca¬daveric specimens, the digital assessments and disc intensity profiles appear to demónstrate disc degeneration, part.cut&rly in oarly stages.
AB - During magnetic resonance imaging, e vesi amount of digital data or anatomic structures is transited into Images, which are then assessed subjectively. Tha development of an abjective, sensitive method to directly assess the digital data would have clear benefits, par tiruiarly for clinical research on disc degeneration. The study goals were to develop a method üf digital as¬sessment of disc desiccation and to compare digital signal irtansity profiles with discographie patterns and macr03naiomlc findings. Proton density-weighted MBls were obtained from 45 males (9-77 years) and dlg:lal analysis was done with a freely selectable region of interest facility, The adjaeen: cerebrospinal fluid (CSFI was used as a reference for disc signel-intensily stores, and the disc to CSF^intensIty ratio provided "adjusted digital scorns." The CSF-adjustBd digital method yielded reproducible scores that correlated with the subjective assessments. However, the CS F-ad justed digital scores were more sensitive than the subjective assessments, dentlfying findings that otherwise were undetected in younger subjects, AdditiûnaÜy, 10 cadav* arie spines ware avalúa tea using MRI with T2 and proton densityweighted sequences, discography, and macroanatomic dissection. MRI disc-intensity profiles ware determined along a midsagittal line drawn through the disc. The profile of the digital scores along this line was then compared with discogrems and maeroanatomic sections. In all cases of disc degeneration on discograms, changes were present in the Intensity profile. Basad on both tha living subjects and the ca¬daveric specimens, the digital assessments and disc intensity profiles appear to demónstrate disc degeneration, part.cut&rly in oarly stages.
KW - Aging
KW - Cadaveric spine
KW - Digital assessment
KW - Disc degeneration
KW - Discogram
KW - MRI1 spine pathology
KW - Macroanatomy
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U2 - 10.1097/00007632-199401001-00014
DO - 10.1097/00007632-199401001-00014
M3 - Article
C2 - 8153830
AN - SCOPUS:0028047702
SN - 0362-2436
VL - 19
SP - 192
EP - 198
JO - Spine
JF - Spine
IS - 2
ER -