Takashi Ito1, Koichi Ishihara2, Imari Deura3, Chieko Katagiri3, Kazuo Maeda4. 1. Department of Obstetrics and Gynecology, Hakuai Hospital, 1880Ryomitsuyanagi, Yonago, 683-0853, Japan. hakuai@cronos.ocn.ne.jp. 2. Department of Obstetrics and Gynecology, Hakuai Hospital, 1880Ryomitsuyanagi, Yonago, 683-0853, Japan. 3. Department of Obstetrics and Gynecology, Tottori University, Faculty of Medicine, Yonago, Japan. 4. Tottori University, Tottori, Japan.
Abstract
PURPOSE: The purpose of this study was to clarify the usefulness of the gray-level histogram width for tissue characterization of the uterine myometrium. METHODS: Thirty-five patients with uterine fibroids, 5 patients with adenomyosis, and 9 patients with extensive myometrial invasion by endometrial carcinoma were studied. The gray-level histogram width was determined by transvaginal ultrasonography. The Mann-Whitney U test was used for statistical analysis. Receiver operating characteristic curves were generated for use in tissue characterization. RESULTS: Significant differences in the gray-level histogram width were found between normal myometrium (54.2% ± 4.2%) and carcinoma (58.2% ± 3.9%), normal myometrium and fibroid (64.3% ± 5.2%), and carcinoma and fibroid. However, it was difficult to identify adenomyosis. The cutoff values to distinguish normal myometrium from carcinoma, normal myometrium from fibroid, and carcinoma from fibroid are 56, 58, and 64, respectively. CONCLUSION: The gray-level histogram width is useful for tissue characterization of the uterine myometrium.
PURPOSE: The purpose of this study was to clarify the usefulness of the gray-level histogram width for tissue characterization of the uterine myometrium. METHODS: Thirty-five patients with uterine fibroids, 5 patients with adenomyosis, and 9 patients with extensive myometrial invasion by endometrial carcinoma were studied. The gray-level histogram width was determined by transvaginal ultrasonography. The Mann-Whitney U test was used for statistical analysis. Receiver operating characteristic curves were generated for use in tissue characterization. RESULTS: Significant differences in the gray-level histogram width were found between normal myometrium (54.2% ± 4.2%) and carcinoma (58.2% ± 3.9%), normal myometrium and fibroid (64.3% ± 5.2%), and carcinoma and fibroid. However, it was difficult to identify adenomyosis. The cutoff values to distinguish normal myometrium from carcinoma, normal myometrium from fibroid, and carcinoma from fibroid are 56, 58, and 64, respectively. CONCLUSION: The gray-level histogram width is useful for tissue characterization of the uterine myometrium.
Authors: K Chandrasekaran; P E Aylward; S R Fleagle; T L Burns; J B Seward; A J Tajik; S M Collins; D J Skorton Journal: J Am Coll Cardiol Date: 1989-03-15 Impact factor: 24.094
Authors: V Di Bello; L Talarico; E Picano; C Di Muro; L Landini; M Paterni; E Matteucci; C Giusti; O Giampietro Journal: J Am Coll Cardiol Date: 1995-05 Impact factor: 24.094