Exploratory study of the interest of MR susceptibility-weighted imaging for the pre-operative assessment of pelvic endometriosis extent

Pin, Louis; Monseau-Thiburce, Anne-Coline; Ziade-Coularis, Caroline; Benjamin, Alice; Menut, Fanny; Brun, Jean‐Luc; Merlot, Benjamin; Chateil, Jean‐François

doi:10.1016/j.ejrad.2019.06.018

Cited by 10 publications

(10 citation statements)

References 15 publications

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“…Pin et al . [5] in their study stated that the overall diagnostic performances of MRI with T2* were improved regarding the evaluation of adnexal and deep infiltrating endometriosis with an increase of the sensitivity from 88.2 to 94.1% and specificity from 68.8 to 73.3%.…”

Section: Discussionmentioning

confidence: 96%

“…There is a range of imaging features in endometriosis, but the hemorrhagic character of lesions markedly aids in their characterization [5].…”

Section: Discussionmentioning

confidence: 99%

“…Methemoglobin and hemosiderin are especially well visualized on T2*-weighted image that is a MR sequence that is sensitive to blood by-products. The visualization of signal voids is caused by the local heterogenicity of the magnetic field, resulting from hemorrhagic products [5].…”

Section: Discussionmentioning

confidence: 99%

“…Later in 2015, Takeuchi et al [18] proved that signal voids as hemorrhagic components on T2* were also observed in extra-ovarian endometriosis. Moreover, Pin et al [5] suggested that T2* might be useful and added as a sequence for treatment planning of endometriosis. Pin et al .…”

Section: Discussionmentioning

confidence: 99%

“…Though there is a wide range of imaging appearances of endometriosis, yet their hemorrhagic elements are its main characterizing imaging feature aiding in its diagnosis [5].…”

Section: Introductionmentioning

confidence: 99%

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Can diffusion and T2 star-weighted magnetic resonance imaging aid in the diagnosis of ectopic endometrium?

Raafat

Talaat

Abdelghaffar

et al. 2021

Egypt J Radiol Nucl Med

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Background Endometriosis is a common gynecologic disorder characterized by the implantation of the endometrial tissue ectopically outside the endometrial cavity. It affects about 10% of females at the childbearing period and is estimated to be present up to 20–50% in women complaining of infertility. While laparoscopy is considered the mainstay for diagnosis, magnetic resonance imaging (MRI) is recognized as a useful tool for definitive diagnosis, pre-surgical planning, and determining whether the patient will require multi-specialty involvement. The aim of this study is to evaluate the performance of MRI with the addition of diffusion-weighted imaging (DWI) and T2 star (T2*) to conventional MRI, for the accurate assessment of ectopic endometrium. Results Endometriotic lesions that showed diffusion restriction on DWI were 80.7%, and 96.1% of the endometriotic lesions had signal voids on the T2*W sequence, whereas only 65.4% of the lesions had typical signal intensities on T1WI and T2WI. Diagnostic performance of the MRI examination was improved by the use of the diffusion sequence and better improved by the T2* sequence, compared to the conventional MR protocol sensitivity (SE) = 96.12% and specificity (SP) = 85.7% in T2*-weighted images, SE = 80.7% and SP = 71.4% in DWI, and SE = 65.4% and SP = 71.4% in conventional MRI. P value for conventional MRI was 0.1, which is of no statistical significance (p < 0.05). P value for DWI was 0.016, which is statistically significant (p < 0.05). P value for T2*WI was 0.001, which is more statistically significant (p < 0.05) and could be adequately correlated with laparoscopy. Conclusion DWI and T2* significantly increase MRI diagnostic accuracy by allowing the detection of the hemorrhagic character of the endometriotic lesions. Studies with a large sample size are needed to confirm that they can replace invasive laparoscopy for the diagnosis of endometriosis.

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Section: Discussionmentioning

confidence: 96%

“…There is a range of imaging features in endometriosis, but the hemorrhagic character of lesions markedly aids in their characterization [5].…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…Though there is a wide range of imaging appearances of endometriosis, yet their hemorrhagic elements are its main characterizing imaging feature aiding in its diagnosis [5].…”

Section: Introductionmentioning

confidence: 99%

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