Journal of Shandong University (Health Sciences) ›› 2017, Vol. 55 ›› Issue (12): 43-50.doi: 10.6040/j.issn.1671-7554.0.2016.1614

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A preliminary study of spectral CT in differential diagnosis of primary ovarian tumors

LIU Zhaodi1, DENG Kai2, JIN Xianwen3, SONG Gesheng2, ZHANG Chengqi2   

  1. 1. Department of Medical Imaging, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong, China;
    2. Department of Medical Imaging, Qianfoshan Hospital Affiliated to Shandong University, Jinan 250014, Shandong, China;
    3. Department of Medical Imaging, Maternal and Child Health Hospital of Shandong Province, Jinan 250014, Shandong, China
  • Online:2017-12-20 Published:2022-09-27

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Abstract: Objective To evaluate the effectiveness of spectral CT in the differential diagnosis of gynecologic ovarian tumors. Methods The clinical data of 58 patients with ovarian tumors undergoing spectral enhanced scan were retrospectively analyzed. The results were confirmed by surgery and pathology. The patients were divided into two groups: benign group(n=30)and malignant group(n=28). The following parameters were measured in the arterial phase and venous phase, including the iodine content(IC), water content(WC), average CT value of 40-140 keV(interval 10 keV), slope of the energy spectrum curve between 40 and 100 keV, and shape of 40-140 keV energy spectrum curve. The pathological results were compared with spectral parameters, and the differential diagnostic value of spectral CT in gynecologic pelvic diseases was evaluated. Results The energy spectrum curve in the two groups both showed a decreased arc shape as single energy increased in the arterial phase and venous phase. The lower the energy, the greater the CT value difference. The CT values of 40-100 keV and slope of the energy spectrum curve in the arterial phase in the 山 东 大 学 学 报 (医 学 版)55卷12期 -刘朝娣,等.能谱CT对卵巢原发良恶性肿瘤的鉴别 \=-benign group were significantly less than those in the malignant group(P<0.05). The CT values of 60-140 keV in the venous phase in the benign group were greater than those in the malignant group(P<0.05), while the iodine content in arterial phase was less(P<0.05). The detection rates of spectral CT in the diagnosis of benign and malignant tumors were 86.67% and 85.71%, respectively. The sensitivity was 86.67% and 80.00%, respectively, and the specificity was 80.00% and 86.67%. There was no statistically significant difference between the CT results and pathological results(κ=0.72), and the consistency was high. Conclusion Multi-parameter analysis with spectral CT allows preliminary differential diagnosis of primary ovarian tumors.

Key words: Tomography, X-ray computer, Spectral imaging, Ovarian tumors, Differential diagnosis

CLC Number: 

  • R711.75
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