J Korean Radiol Soc.  1990 Apr;26(2):389-394. 10.3348/jkrs.1990.26.2.389.

Quantitative scintigraphy of sacroiliac joint

• Suh JS
• Park CY
• Suh JH

• KMID: 2358959
• DOI: http://doi.org/10.3348/jkrs.1990.26.2.389

Abstract

The S-I index (sacro-iliac/sacral uptakeX100) was calculated in 67 control subjects. We used both theposterior planar image and single photon emission computed tomography(SPECT) image for calculation in eachsubject. The S-I indixes were analysed according to age, gender and laterality. The mean right S-I index of 117.3, calculated by the posterior planar image, was signigicantly higher (p<0.01) than the left S-I index of 112.4. Themean right S-I index of 155.1, calculated by the SPECT image, was also significantly higher (p<0.05) than the leftS-I, index of 151.2. There was no significant difference of the S-I index according to gender by use of either theposterior planar image or SPECT image. There was tendency of the decrease of the S-I index with aging, which wassignificant only in the measurement by the posterior planar image. The correlation coefficient between both methods was 0.77 in the right S-I index, 0.79 in the left respectively. In regard to two different measurement, the age affected the S-I index less sisgnificantly in the SPECT image than in the posterior planar image. In termsof the superiority of one of these measurements the S-I index in the patients with sacroilitis must be comparedfor the access of discrepancy away from the control subjects before the SPECT can be used clinically.

MeSH Terms

Aging
Humans
Radionuclide Imaging*
Sacroiliac Joint*
Tomography, Emission-Computed, Single-Photon