The value of single photon emission computed tomography-computed tomography in diagnosis of carcinoma invasion of mandible
10.3321/j.issn:1002-0098.2008.08.011
- VernacularTitle:单光子发射计算机体层摄影术和CT同机融合在诊断口腔癌侵犯下颌骨中的临床价值
- Author:
Mu-Yun JIA
1
;
Qing-Yun DUAN
;
Rong-Tao YUAN
;
Wei SHANG
;
Jie ZHAO
;
Guo-Ming WANG
Author Information
1. 青岛大学医学院附属医院
- Keywords:
Head and neck neoplasma;
Tomography,spiral computed;
Single photon emissioncomputed tomography
- From:
Chinese Journal of Stomatology
2008;43(8):488-491
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of single photon emission computed tomography (SPECT)-computed tomography (CT) in diagnosis of oral carcinoma invasion to mandible. Methods Thirty-four patients with oral carcinoma invasion to mandible were divided into two groups, group A (surrounding invasion) and group B (central invasion). The edge of the invasion was evaluated by SPECT-CT, CT and pathological examination. The results of CT and SPECT-CT were analyzed by quantitative methods. Results In group A,the cancer-invaded area of the mandible exhibited on SPECT-CT was 1.0 cm lager than that on pathological examination, 2. 4 cm lager than that on CT. The difference of invaded areas hown on CT was 1.4 cm smaller than that of pathological examination. There were significant difference among the three methods. In group B, the affected area on SPECT-CT was 1.2 cm lager than that of pathological examination, 4. 2 cm lager than that of CT. The invision area on CT was 3. 0 cm smaller tha nthat of pathological examination. There were significant difference among the three methods. Conclusions SPECT-CT could find the jaw central tumor earlier than CT and the range of lesion showed by SPECT-CT was the adequate range of bone incision during operation. The range of lesion showed by CT was influenced by the type of tumor and the range of bone incision was determined according to the pathological type. If the false negative result was eliminated, only SPECT-CT or CT was needed to estimate the invasion range of mandible.
