caa a22 4500 605492301 CHVBK 20210128100514.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s00261-014-0314-7 doi (NATIONALLICENCE)springer-10.1007/s00261-014-0314-7 Use of enhanced T2 star-weighted angiography (ESWAN) and R2* values to distinguish ovarian cysts due to endometriosis from other causes [Elektronische Daten] [Ye Li, Qing-Wei Song, Mei-Yu Sun, He-Qing Wang, Sheng Wang, Qiang Wei, Jing-Hong Liu, Shi-Feng Tian, Zi-Bin Tong, Ai-Lian Liu] Purpose: To evaluate the feasibility of enhanced T2 star-weighted angiography (ESWAN) in differentiating endometrial from non-endometrial cysts. Methods: Forty-nine patients with 60 histopathologically proven ovarian cystic lesions underwent pelvic MRI including T1-weighted imaging (T1WI), T2-weighted imaging (T2WI), liver acquisition with volume acceleration, and ESWAN. Ovarian cystic lesions were divided into endometrial cysts (group 1; n=28), pyosalpinx and hydrosalpinx (group 2; n=13), and ovarian cystic and cystic-solid tumors (group 3; n=19). R2* (effective transverse relaxation rate) values were measured and pairwise comparison of the R2* values among the three groups was made using Kruskal-Wallis test. Receiver operating characteristic curves were used to calculate cutoff values and performance of R2* values for distinguishing among groups. T1WI signal intensity and R2* value were also compared using area under curve values. Results: R2* values for group 1 were statistically higher than groups 2 and 3 (15.37, 1.40, and 1.79Hz, respectively; P<0.001). The cutoff value for R2* was 7.43Hz with a sensitivity, specificity, PPV, NPV, and accuracy of 96.43, 87.50, 87.10, 96.55, and 91.67%, respectively. There was no significant difference between the R2* value and T1WI in diagnosing endometrial cysts. Conclusions: The R2* value provides an effective way to discriminate endometrial cysts from other ovarian cystic lesions. Springer Science+Business Media New York, 2014 Magnetic resonance imaging nationallicence Ovarian endometriosis nationallicence R2* nationallicence Enhanced-T2*-weighted angiography nationallicence Ovarian cystic lesions nationallicence Endometrioma nationallicence Endometrial cyst nationallicence Li Ye Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Song Qing-Wei Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Sun Mei-Yu Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Wang He-Qing Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Wang Sheng Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Wei Qiang Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Liu Jing-Hong Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Tian Shi-Feng Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Tong Zi-Bin Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Liu Ai-Lian Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut Abdominal Imaging Springer US; http://www.springer-ny.com 40/6(2015-08-01), 1733-1741 0942-8925 40:6<1733 2015 40 261 https://doi.org/10.1007/s00261-014-0314-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00261-014-0314-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Ye Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Song Qing-Wei Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Sun Mei-Yu Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Wang He-Qing Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Wang Sheng Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Wei Qiang Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Liu Jing-Hong Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Tian Shi-Feng Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Tong Zi-Bin Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 700 1- Liu Ai-Lian Department of Radiology, The First Affiliated Hospital of Dalian Medical University, No.222 Zhongshan Road, Xigang District, 116011, Dalian, Liaoning, China aut NATIONALLICENCE 773 0- Abdominal Imaging Springer US; http://www.springer-ny.com 40/6(2015-08-01), 1733-1741 0942-8925 40:6<1733 2015 40 261