T2*-Weighted Imaging Performance in the Detection of Deep Endometriosis among Readers with Different Experience: Comparison with Conventional MRI Sequences

Franco, Paolo Niccolò; Annibali, Simona; Viganò, Sara; Cazzella, Caterina; Marra, Chiara; Smedile, A.; Bonaffini, Pietro Andrea; Marra, Paolo; García, María Milagros Otero; Reinhold, Caroline; Sironi, Sandro

doi:10.3390/diagnostics12071545

Cited by 4 publications

(3 citation statements)

References 22 publications

(42 reference statements)

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“…MRI is also an effective technique for the preoperative diagnosis and staging of deep infiltrative endometriosis (IEM). However, the usefulness of MRI, because of sequences susceptible to chronic blood degradation products such as T2*-weighted images, remains uncertain ( 10 ). In an interesting previous study, MRI was used before surgery, dysmenorrhea, deep dyspareunia, and non-cyclical pelvic pain.…”

Section: Resultsmentioning

confidence: 99%

Anatomy of the lower hypogastric plexus applied to endometriosis: a narrative review

et al. 2023

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Objective The objective of the present study is to evaluate the anatomy of the inferior hypogastric plexus, correlating it with urological pathologies, imaging exams and surgeries of the female pelvis, especially for treatment of endometriosis. Material and Methods We carried out a review about the anatomy of the inferior hypogastric plexus in the female pelvis. We analyzed papers published in the past 20 years in the databases of Pubmed, Embase and Scielo, and we included only papers in English and excluded case reports, editorials, and opinions of specialists. We also studied two human fixed female corpses and microsurgical dissection material with a stereoscopic magnifying glass with 2.5x magnification. Results Classical anatomical studies provide few details of the morphology of the inferior hypogastric plexus (IHP) or the location and nature of the associated nerves. The fusion of pelvic splanchnic nerves, sacral splanchnic nerves, and superior hypogastric plexus together with visceral afferent fibers form the IHP. The surgeon’s precise knowledge of the anatomical relationship between the hypogastric nerve and the uterosacral ligament is essential to reduce the risk of complications and postoperative morbidity of patients surgically treated for deep infiltrative endometriosis involving the uterosacral ligament. Conclusion Accurate knowledge of the innervation of the female pelvis is of fundamental importance for prevention of possible injuries and voiding dysfunctions as well as the evacuation mechanism in the postoperative period. Imaging exams such as nuclear magnetic resonance are interesting tools for more accurate visualization of the distribution of the hypogastric plexus in the female pelvis.

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Section: Resultsmentioning

confidence: 99%

Anatomy of the lower hypogastric plexus applied to endometriosis: a narrative review

et al. 2023

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“…Other acute endometriosis manifestations include endometrioma ruptures, endometrioma superinfection, PID with tubo-ovarian abscess, and urinary tract obstruction [57][58][59][60]. MRI is considered the reference standard imaging modality for the diagnosis of endometriosis [61,62]. However, CT is usually the preferred imaging modality when an acute complication of endometriosis occurs in an ED setting.…”

Section: Endometriosismentioning

confidence: 99%

Gynaecological Causes of Acute Pelvic Pain: Common and Not-So-Common Imaging Findings

Franco,

García-Baizán,

Aymerich

et al. 2023

Life

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In female patients, acute pelvic pain can be caused by gynaecological, gastrointestinal, and urinary tract pathologies. Due to the variety of diagnostic possibilities, the correct assessment of these patients may be challenging. The most frequent gynaecological causes of acute pelvic pain in non-pregnant women are pelvic inflammatory disease, ruptured ovarian cysts, ovarian torsion, and degeneration or torsion of uterine leiomyomas. On the other hand, spontaneous abortion, ectopic pregnancy, and placental disorders are the most frequent gynaecological entities to cause acute pelvic pain in pregnant patients. Ultrasound (US) is usually the first-line diagnostic technique because of its sensitivity across most common aetiologies and its lack of radiation exposure. Computed tomography (CT) may be performed if ultrasound findings are equivocal or if a gynaecologic disease is not initially suspected. Magnetic resonance imaging (MRI) is an extremely useful second-line technique for further characterisation after US or CT. This pictorial review aims to review the spectrum of gynaecological entities that may manifest as acute pelvic pain in the emergency department and to describe the imaging findings of these gynaecological conditions obtained with different imaging techniques.

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“…Therefore, SWI can be used for hemorrhage, calcification, iron deposition related diseases, and other areas. SWI, as a functional MRI technique.It is widely used in brain and nervous system examination and fetal spine imaging [9][10] [11]. Various fields use it to detect liver cirrhosis nodules, body tumor bleeding.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Magnetic Susceptibility Weighted Imaging for Female Pelvic Scans

Liu,

Yu,

et al. 2024

Preprint

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Background and Objectives: The existing recommendations for female pelvic magnetic susceptibility weighted imaging MRI (FP-SWI) have not been optimized to capture the disease characteristics of the female pelvis. Therefore, it is imperative to explore acquisition parameters before conducting larger-scale studies. To establish optimized flip angle (FA) for acquiring FP-SWI to improve the image quality of female pelvic lesion sites. Materials and Methods: To evaluate signal quality and lesion conspicuity, regions of interest (ROIs) were manually drawn within the lesion on SWI sequences. Signal intensity was measured within the ROIs. Additionally, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated for SWI sequences acquired at three FA: 10°, 15°, and 20°. Finally, a qualitative assessment of anatomical detail visualization, geometric distortion extent, artifacts, and lesion clarity was performed using a four-point scale. The Wilcoxon rank sum test was employed to compare the qualitative evaluation parameters. The intra-class correlation coefficient (ICC) was calculated to determine the consistency of subjective ratings between two observers. Results: FA=10° showed significantly higher SNR than FA=15° and 20° in most anatomical regions (P&lt;0.05), while the CNR was significantly higher than FA=15° and 20° (P&lt;0.05). Compared with FA=15° and 20°, the image quality of FA=10° was significantly higher, with less distortion and ghosting, and better image contrast (P&lt;0.05). Lesions with FA=10° exhibited higher clarity compared to FA=15° and 20° (P&lt;0.05). Conclusions: The image quality of FP-SWI images at FA=10° exceeds that at FA=15° and 20°. We recommend that when conducting SWI examination of the female pelvic cavity, the FA value should be set at 10° to stabilize the SWI sequence and improve image quality.

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T2*-Weighted Imaging Performance in the Detection of Deep Endometriosis among Readers with Different Experience: Comparison with Conventional MRI Sequences

Cited by 4 publications

References 22 publications

Anatomy of the lower hypogastric plexus applied to endometriosis: a narrative review

Anatomy of the lower hypogastric plexus applied to endometriosis: a narrative review

Gynaecological Causes of Acute Pelvic Pain: Common and Not-So-Common Imaging Findings

Optimization of Magnetic Susceptibility Weighted Imaging for Female Pelvic Scans

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