caa a22 4500 465786162 CHVBK 20180323112009.0 cr unu---uuuuu 170327e19900801xx s 000 0 eng 10.1007/BF00998168 doi (NATIONALLICENCE)springer-10.1007/BF00998168 Lantto Tuomo Department of Nuclear Medicine, Päijät-Häme Central Hospital, Keskussairaalankatu 7, SF-15850, Lahti, Finland aut The scintigraphy of sacroiliac joints [Elektronische Daten] A comparison of99mTc-DPD and99mTc-MDP [Tuomo Lantto] The accumulation of99mTc-methylene diphosphonate (99mTc-MDP) and99mTc-dicarboxypropane diphosphonate (99mTc-DPD) in sacroiliac (si) joints was evaluated as a function of imaging time in 22 control patients and 5 patients with sacroiliitis. The controls were injected with either99mTc-DPD or99mTc-MDP (12 and 10 patients, respectively) and the patients with sacroiliitis with both agents within 5 days. Both the anterior and posterior views of the si joints were taken. The sacroiliac joint-to-sacrum (SI/S) ratio was calculated with the region of interest method. No statistically significant differences between these bone-seeking agents were found in the SI/S ratios of the control or the diseased patients. A clear overlap of indices (mean ± SD) was found between the control patients and the patients with sacroiliitis. When the inflamed si joint was divided into three small adjacent areas and the SI/S ratios calculated for these areas, a statistically significant (P < 0.001) increase in the SI/S ratio was noticed when compared with the SI/S ratio of the whole joint. Comparison of control patients and patients with sacroiliitis showed the most significant differences in the anterior views as well as in theP value:P < 0.001 in all patients injected with99mTc-DPD and in most patients injected with99mTc MDP. In the posterior views, the significance was less marked. In every case, the inflamed part of the si joint was visible in the anterior views. The background subtraction had the greatest effect on the SI/S ratio of anterior images, but in the posterior views no significance was found. The low specificity of sacroiliac joint imaging must be taken into consideration when the results are interpreted. Springer-Verlag, 1990 Sacroiliac joint imaging nationallicence 99mTc-MDP nationallicence 99mTc-DPD nationallicence Anterior images nationallicence European Journal of Nuclear Medicine Springer-Verlag 16/8-10(1990-08-01), 677-681 0340-6997 16:8-10<677 1990 16 259 https://doi.org/10.1007/BF00998168 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00998168 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Lantto Tuomo Department of Nuclear Medicine, Päijät-Häme Central Hospital, Keskussairaalankatu 7, SF-15850, Lahti, Finland aut NATIONALLICENCE 773 0- European Journal of Nuclear Medicine Springer-Verlag 16/8-10(1990-08-01), 677-681 0340-6997 16:8-10<677 1990 16 259 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer