The additional value of SPECT/CT fusion imaging in the diagnosis of ectopic gastric mucosa | [Journal of Pakistan Medical Association • 2020]

Author(s):

1. Yan Liu: Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.

2. Shui Jin: Department of Nuclear Medicine, Zhejiang Cancer Hospital, Hanzhou, Zhejiang, China

3. Ruihua Wang: Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.

4. Xinli Xie: Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.

5. Xingmin Han: Department of Nuclear Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.

Abstract:

Objective: To evaluate the value of single-photon emission computed tomography/computed tomography fusion alone and in addition to pertechnetate planar imaging in the diagnosis of ectopic gastric mucosa. Methods: The retrospective study was conducted at the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China, and comprised medical records from May 2014 to April 2015 of children aged <14 years and suspected of ectopic gastric mucosa. All patients underwent both planar imaging and single-photon emission computed tomography/computed tomography fusion imaging, and were followed up for more than 6 months. The final diagnoses were determined based on the results of pathology and clinical follow-up. The sensitivity, specificity, and accuracy of diagnosing ectopic gastric mucosa were compared by using planar imaging, SPECT/CT fusion imaging and a combination of both. Data was analysed using SPSS 21. Results: Of the 41 patients, ectopic gastric mucosa was diagnosed in 24(58.5%) by pathological results or clinical follow-up. Planar imaging suggested 33(80.5%) positive and 8(19.5%) negative cases, while fusion imaging reported 23(56%) and 18(44%) respectively. The sensitivity, specificity and accuracy of planar imaging were 91.67%? 35.29% and 68.29%, and in fusion imaging they were 91.67%?94.12% and 89.47% respectively. The corresponding values of the combination of two imaging techniques were 91.67%?100% and 95.12% respectively (p=0.006). Kappa value of the diagnostic consistency between fusion imaging and a combination of two imagings was 0.951 (p=0.0001). Conclusions: Planar imaging had a low specificity compared to fusion imaging and a combination of fusion and planar imagings.

Page(s): 1177-1181

DOI: DOI not available

Published: Journal: Journal of Pakistan Medical Association, Volume: 70, Issue: 7, Year: 2020

Keywords:

SPECTCT fusion imaging , Diagnose , Planar imaging , Ectopic gastric mucosa

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