Uterine restricted diffusion refers to a hyperintense signal involving the endometrium, myometrium, or cervix on DWI images with a corresponding low signal on ADC images, with a mean cut-off ADC value for malignancy of 1.15 x 10^-3mm²/s ⁷.

References

1. Kara Bozkurt D, Bozkurt M, Nazli MA, Mutlu IN, Kilickesmez O. Diffusion-weighted and diffusion-tensor imaging of normal and diseased uterus. (2015) World journal of radiology. 7 (7): 149-56. doi:10.4329/wjr.v7.i7.149 - Pubmed
2. Duarte AL, Dias JL, Cunha TM. Pitfalls of diffusion-weighted imaging of the female pelvis. (2018) Radiologia brasileira. 51 (1): 37-44. doi:10.1590/0100-3984.2016.0208 - Pubmed
3. Nougaret S, Tirumani SH, Addley H, Pandey H, Sala E, Reinhold C. Pearls and pitfalls in MRI of gynecologic malignancy with diffusion-weighted technique. (2013) AJR. American journal of roentgenology. 200 (2): 261-76. doi:10.2214/AJR.12.9713 - Pubmed
4. Thomassin-Naggara I, Fournier LS, Roussel A, Marsault C, Bazot M. [Diffusion-weighted MR imaging of the female pelvis]. (2010) Journal de radiologie. 91 (3 Pt 2): 431-8; quiz 439-40. doi:10.1016/s0221-0363(10)70058-5 - Pubmed
5. Namimoto T, Awai K, Nakaura T, Yanaga Y, Hirai T, Yamashita Y. Role of diffusion-weighted imaging in the diagnosis of gynecological diseases. (2009) European radiology. 19 (3): 745-60. doi:10.1007/s00330-008-1185-5 - Pubmed
6. Goto A, Takeuchi S, Sugimura K, Maruo T. Usefulness of Gd-DTPA contrast-enhanced dynamic MRI and serum determination of LDH and its isozymes in the differential diagnosis of leiomyosarcoma from degenerated leiomyoma of the uterus. (2002) International journal of gynecological cancer : official journal of the International Gynecological Cancer Society. 12 (4): 354-61. doi:10.1046/j.1525-1438.2002.01086.x - Pubmed
7. Fujii S, Matsusue E, Kigawa J, Sato S, Kanasaki Y, Nakanishi J, Sugihara S, Kaminou T, Terakawa N, Ogawa T. Diagnostic accuracy of the apparent diffusion coefficient in differentiating benign from malignant uterine endometrial cavity lesions: initial results. (2008) European radiology. 18 (2): 384-9. doi:10.1007/s00330-007-0769-9 - Pubmed
8. Dhanda S, Thakur M, Kerkar R, Jagmohan P. Diffusion-weighted imaging of gynecologic tumors: diagnostic pearls and potential pitfalls. (2014) Radiographics : a review publication of the Radiological Society of North America, Inc. 34 (5): 1393-416. doi:10.1148/rg.345130131 - Pubmed
9. Ono H, Kanematsu M, Kato H, Toyoki H, Hayasaki Y, Furui T, Morishige K, Hatano Y. MR imaging findings of uterine pyomyoma: radiologic-pathologic correlation. (2014) Abdominal imaging. 39 (4): 797-801. doi:10.1007/s00261-014-0112-2 - Pubmed