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JYMS : Journal of Yeungnam Medical Science

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See Hyung Kim 3 Articles
Assessment of solid components of borderline ovarian tumor and stage I carcinoma: added value of combined diffusion- and perfusion-weighted magnetic resonance imaging
See Hyung Kim
Yeungnam Univ J Med. 2019;36(3):231-240.   Published online June 13, 2019
Correction in: J Yeungnam Med Sci 2020;37(2):147
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  • 83 Download
  • 3 Crossref
AbstractAbstract PDF
We sought to determine the value of combining diffusion-weighted (DW) and perfusion-weighted (PW) sequences with a conventional magnetic resonance (MR) sequence to assess solid components of borderline ovarian tumors (BOTs) and stage I carcinomas.
Conventional, DW, and PW sequences in the tumor imaging studies of 70 patients (BOTs, n=38; stage I carcinomas, n=32) who underwent surgery with pathologic correlation were assessed. Two independent radiologists calculated the parameters apparent diffusion coefficient (ADC), Ktrans (vessel permeability), and Ve (cell density) for the solid components. The distribution on conventional MR sequence and mean, standard deviation, and 95% confidence interval of each DW and PW parameter were calculated. The inter-observer agreement among the two radiologists was assessed. Area under the receiver operating characteristic curve (AUC) and multivariate logistic regression were performed to compare the effectiveness of DW and PW sequences for average values and to characterize the diagnostic performance of combined DW and PW sequences.
There were excellent agreements for DW and PW parameters between radiologists. The distributions of ADC, Ktrans and Ve values were significantly different between BOTs and stage I carcinomas, yielding AUCs of 0.58 and 0.68, 0.78 and 0.82, and 0.70 and 0.72, respectively, with ADC yielding the lowest diagnostic performance. The AUCs of the DW, PW, and combined PW and DW sequences were 0.71±0.05, 0.80±0.05, and 0.85±0.05, respectively.
Combining PW and DW sequences to a conventional sequence potentially improves the diagnostic accuracy in the differentiation of BOTs and stage I carcinomas.


Citations to this article as recorded by  
  • Advances in fertility preserving surgery for borderline ovarian tumors
    Mingdan Wang, Kuiran Liu
    European Journal of Obstetrics & Gynecology and Reproductive Biology.2022; 270: 206.     CrossRef
  • Recurrence characteristics and clinicopathological results of borderline ovarian tumors
    Lina Niu, Huihui Tian, Yongjun Xu, Jieqiong Cao, Xu Zhang, Junli Zhang, Jiajia Hou, Weiqin Lv, Junxia Wang, Li Xin, XuFeng Dong, Tao Xu, Yuan Nan, Hua Wei, Xinting Chai, Na Li, Yan Ni, Yun Shang, Lizhen Zhang, Ye Zhao
    BMC Women's Health.2021;[Epub]     CrossRef
  • Erratum to “Assessment of solid components of borderline ovarian tumor and stage I carcinoma: added value of combined diffusion- and perfusion-weighted magnetic resonance imaging”
    See Hyung Kim
    Yeungnam University Journal of Medicine.2020; 37(2): 147.     CrossRef
Preoperative Staging of Endometrial Carcinoma by MRI.
See Hyung Kim, Jae Ho Cho, Bok Hwan Park
Yeungnam Univ J Med. 2002;19(2):116-125.   Published online December 31, 2002
  • 1,226 View
  • 1 Download
AbstractAbstract PDF
In patients with endometrial carcinoma, preoperative evaluation of exact staging has important prognostic and therapeutic implications. The incidence of pelvic and aortic lymph node involvement in endometrial carcinoma depends on grade of tumor differentiation and depth of myometrial invasion. MATERIAL AND METHOD: To evaluate whether MRI provides a preoperative assessment for staging of endometrial carcinoma, MRI was undertaken in 28 patients, a few weeks before operation. Myometrial invasion was devided in three categories, and involvement of cervix, adnexa, and pelvic cavity were classified. RESULTS: The results of MR imaging were compared with these of pathology. The preoperative MRI staging of endometrial carcinoma was correct in 22 out of 28 patients. In the evaluation of myometrial invasion, the MR imaging underestimated in 4 cases and overestimated in 1 case. CONCLUSION: In patients with endometrial carcinoma, MR imaging is very useful in the assessment of the depth of myometrial invasion, stromal invasion of cevix, lymphatic & pelvic metastases and extent of the lesion.

JYMS : Journal of Yeungnam Medical Science