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Slotman DJ, Bartels LW, Nijholt IM, Huirne JAF, Moonen CTW, Boomsma MF. Development and validation of a deep learning-based method for automatic measurement of uterus, fibroid, and ablated volume in MRI after MR-HIFU treatment of uterine fibroids. Eur J Radiol 2024; 178:111602. [PMID: 38991285 DOI: 10.1016/j.ejrad.2024.111602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/21/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024]
Abstract
INTRODUCTION The non-perfused volume divided by total fibroid load (NPV/TFL) is a predictive outcome parameter for MRI-guided high-intensity focused ultrasound (MR-HIFU) treatments of uterine fibroids, which is related to long-term symptom relief. In current clinical practice, the MR-HIFU outcome parameters are typically determined by visual inspection, so an automated computer-aided method could facilitate objective outcome quantification. The objective of this study was to develop and evaluate a deep learning-based segmentation algorithm for volume measurements of the uterus, uterine fibroids, and NPVs in MRI in order to automatically quantify the NPV/TFL. MATERIALS AND METHODS A segmentation pipeline was developed and evaluated using expert manual segmentations of MRI scans of 115 uterine fibroid patients, screened for and/or undergoing MR-HIFU treatment. The pipeline contained three separate neural networks, one per target structure. The first step in the pipeline was uterus segmentation from contrast-enhanced (CE)-T1w scans. This segmentation was subsequently used to remove non-uterus background tissue for NPV and fibroid segmentation. In the following step, NPVs were segmented from uterus-only CE-T1w scans. Finally, fibroids were segmented from uterus-only T2w scans. The segmentations were used to calculate the volume for each structure. Reliability and agreement between manual and automatic segmentations, volumes, and NPV/TFLs were assessed. RESULTS For treatment scans, the Dice similarity coefficients (DSC) between the manually and automatically obtained segmentations were 0.90 (uterus), 0.84 (NPV) and 0.74 (fibroid). Intraclass correlation coefficients (ICC) were 1.00 [0.99, 1.00] (uterus), 0.99 [0.98, 1.00] (NPV) and 0.98 [0.95, 0.99] (fibroid) between manually and automatically derived volumes. For manually and automatically derived NPV/TFLs, the mean difference was 5% [-41%, 51%] (ICC: 0.66 [0.32, 0.85]). CONCLUSION The algorithm presented in this study automatically calculates uterus volume, fibroid load, and NPVs, which could lead to more objective outcome quantification after MR-HIFU treatments of uterine fibroids in comparison to visual inspection. When robustness has been ascertained in a future study, this tool may eventually be employed in clinical practice to automatically measure the NPV/TFL after MR-HIFU procedures of uterine fibroids.
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Affiliation(s)
- Derk J Slotman
- Department of Radiology, Isala, Zwolle, the Netherlands; Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, the Netherlands.
| | - Lambertus W Bartels
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Ingrid M Nijholt
- Department of Radiology, Isala, Zwolle, the Netherlands; Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Judith A F Huirne
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Amsterdam, the Netherlands; Amsterdam Reproduction and Development, Amsterdam, the Netherlands
| | - Chrit T W Moonen
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, the Netherlands; Focused Ultrasound Foundation, Charlottesville, VA, United States of America
| | - Martijn F Boomsma
- Department of Radiology, Isala, Zwolle, the Netherlands; Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, the Netherlands
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Huang Y, Zhou S, Su Y, Pang Z, Cai S. Diffusion-weighted imaging as a potential non-gadolinium alternative for immediate assessing the hyperacute outcome of MRgFUS ablation for uterine fibroids. Sci Rep 2024; 14:9857. [PMID: 38684835 PMCID: PMC11058248 DOI: 10.1038/s41598-024-60693-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024] Open
Abstract
The aim of this study was to investigate the value of diffusion-weighted imaging (DWI) as a potential non-gadolinium alternative for promptly assessing the hyperacute outcome of magnetic resonance-guided focused ultrasound (MRgFUS) treatment for uterine fibroids. In this retrospective study we included 65 uterine fibroids from 44 women, who underwent axial DWI (b-value: 800 s/mm2) and contrast-enhanced (CE) MR within 15 min post-ablation. Two blinded observers independently reviewed the DWI findings of ablated necrotic lesions and measured their volumes on DWI and CE images. The post-ablation DWI images revealed clear depiction of ablative necrotic lesions in all fibroids, which were classified into two types: the bull's eye sign (type 1) and the bright patch sign (type 2). The inter-observer intraclass correlation coefficient for classifying DWI signal types was 0.804 (p < 0.001). Volumetric analysis of ablated necrosis using DWI and CE T1-weighted imaging showed no significant variance, nor did the non-perfused volume ratios (all p > 0.05). Bland-Altman analysis revealed a mean difference of 2.38% and 1.71% in non-perfused volume ratios between DWI and CE, with 95% limits of agreement from - 19.06 to 23.82% and - 18.40 to 21.82%, respectively. The findings of this study support the potential of DWI as a viable non-gadolinium alternative for evaluating the hyperacute outcomes of MRgFUS ablation in uterine fibroids.
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Affiliation(s)
- Yaoqu Huang
- Center of MRgFUS, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, No.6 Qinren Road, Foshan, 528000, Guangdong, China.
| | - Shouguo Zhou
- Center of MRgFUS, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, No.6 Qinren Road, Foshan, 528000, Guangdong, China
| | - Yinghua Su
- Chancheng High-Tech District Hospital of Foshan Hospital of Traditional Chinese Medicine, Foshan, 528000, Guangdong, China
| | - Zhuochao Pang
- Department of Gynecology, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan, 528000, Guangdong, China
| | - Shihua Cai
- Center of MRgFUS, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, No.6 Qinren Road, Foshan, 528000, Guangdong, China
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Slotman DJ, Bartels LW, Nijholt IM, Froeling M, Huirne JAF, Moonen CTW, Boomsma MF. Intravoxel incoherent motion (IVIM)-derived perfusion fraction mapping for the visual evaluation of MR-guided high intensity focused ultrasound (MR-HIFU) ablation of uterine fibroids. Int J Hyperthermia 2024; 41:2321980. [PMID: 38616245 DOI: 10.1080/02656736.2024.2321980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/19/2024] [Indexed: 04/16/2024] Open
Abstract
BACKGROUND A method for periprocedural contrast agent-free visualization of uterine fibroid perfusion could potentially shorten magnetic resonance-guided high intensity focused ultrasound (MR-HIFU) treatment times and improve outcomes. Our goal was to test feasibility of perfusion fraction mapping by intravoxel incoherent motion (IVIM) modeling using diffusion-weighted MRI as method for visual evaluation of MR-HIFU treatment progression. METHODS Conventional and T2-corrected IVIM-derived perfusion fraction maps were retrospectively calculated by applying two fitting methods to diffusion-weighted MRI data (b = 0, 50, 100, 200, 400, 600 and 800 s/mm2 at 1.5 T) from forty-four premenopausal women who underwent MR-HIFU ablation treatment of uterine fibroids. Contrast in perfusion fraction maps between areas with low perfusion fraction and surrounding tissue in the target uterine fibroid immediately following MR-HIFU treatment was evaluated. Additionally, the Dice similarity coefficient (DSC) was calculated between delineated areas with low IVIM-derived perfusion fraction and hypoperfusion based on CE-T1w. RESULTS Average perfusion fraction ranged between 0.068 and 0.083 in areas with low perfusion fraction based on visual assessment, and between 0.256 and 0.335 in surrounding tissues (all p < 0.001). DSCs ranged from 0.714 to 0.734 between areas with low perfusion fraction and the CE-T1w derived non-perfused areas, with excellent intraobserver reliability of the delineated areas (ICC 0.97). CONCLUSION The MR-HIFU treatment effect in uterine fibroids can be visualized using IVIM perfusion fraction mapping, in moderate concordance with contrast enhanced MRI. IVIM perfusion fraction mapping has therefore the potential to serve as a contrast agent-free imaging method to visualize the MR-HIFU treatment progression in uterine fibroids.
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Affiliation(s)
- Derk J Slotman
- Department of Radiology, Isala Hospital, Zwolle, The Netherlands
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Lambertus W Bartels
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ingrid M Nijholt
- Department of Radiology, Isala Hospital, Zwolle, The Netherlands
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Martijn Froeling
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Judith A F Huirne
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Amsterdam, The Netherlands
- Amsterdam Reproduction and Development, Amsterdam UMC, Amsterdam, The Netherlands
| | - Chrit T W Moonen
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Martijn F Boomsma
- Department of Radiology, Isala Hospital, Zwolle, The Netherlands
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
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Etrusco A, Buzzaccarini G, Laganà AS, Chiantera V, Vitale SG, Angioni S, D’Alterio MN, Nappi L, Sorrentino F, Vitagliano A, Difonzo T, Riemma G, Mereu L, Favilli A, Peitsidis P, D’Amato A. Use of Diode Laser in Hysteroscopy for the Management of Intrauterine Pathology: A Systematic Review. Diagnostics (Basel) 2024; 14:327. [PMID: 38337843 PMCID: PMC10855490 DOI: 10.3390/diagnostics14030327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/20/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
Background: Hysteroscopy currently represents the gold standard for the diagnosis and treatment of intrauterine pathologies. Recent technological progress has enabled the integration of diagnostic and operative time, leading to the "see and treat" approach. Diode laser technology is emerging as one of the most innovative and intriguing techniques in this context. Methods: A comprehensive search of the literature was carried out on the main databases. Only original studies reporting the treatment of intrauterine pathologies using diode laser were deemed eligible for inclusion in this systematic review (PROSPERO ID: CRD42023485452). Results: Eight studies were included in the qualitative analysis for a total of 474 patients undergoing laser hysteroscopic surgery. Eighty-three patients had female genital tract abnormalities, 63 had submucosal leiomyomas, 327 had endometrial polyps, and one patient had a scar pregnancy. Except for leiomyomas, whose technique already included two surgical times at the beginning, only seven patients required a second surgical step. Cumulative rates of intraoperative and postoperative complications of 2.7% and 0.6%, respectively, were reported. Conclusions: Diode laser through "see and treat" hysteroscopy appears to be a safe and effective method. However, additional studies with larger sample sizes and improved designs are needed to consolidate the evidence currently available in the literature.
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Affiliation(s)
- Andrea Etrusco
- Unit of Obstetrics and Gynecology, “Paolo Giaccone” Hospital, 90127 Palermo, Italy;
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy;
| | - Giovanni Buzzaccarini
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, 20132 Milan, Italy;
| | - Antonio Simone Laganà
- Unit of Obstetrics and Gynecology, “Paolo Giaccone” Hospital, 90127 Palermo, Italy;
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy;
| | - Vito Chiantera
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy;
- Unit of Gynecologic Oncology, National Cancer Institute IRCCS Fondazione “G. Pascale”, 80131 Naples, Italy
| | - Salvatore Giovanni Vitale
- Division of Gynecology and Obstetrics, Department of Surgical Sciences, University of Cagliari, 09124 Cagliari, Italy; (S.G.V.); (S.A.); (M.N.D.)
| | - Stefano Angioni
- Division of Gynecology and Obstetrics, Department of Surgical Sciences, University of Cagliari, 09124 Cagliari, Italy; (S.G.V.); (S.A.); (M.N.D.)
| | - Maurizio Nicola D’Alterio
- Division of Gynecology and Obstetrics, Department of Surgical Sciences, University of Cagliari, 09124 Cagliari, Italy; (S.G.V.); (S.A.); (M.N.D.)
| | - Luigi Nappi
- Department of Medical and Surgical Sciences, Institute of Obstetrics and Gynecology, University of Foggia, 71121 Foggia, Italy; (L.N.); (F.S.)
| | - Felice Sorrentino
- Department of Medical and Surgical Sciences, Institute of Obstetrics and Gynecology, University of Foggia, 71121 Foggia, Italy; (L.N.); (F.S.)
| | - Amerigo Vitagliano
- Department of Interdisciplinary Medicine (DIM), Unit of Obstetrics and Gynecology, University of Bari “Aldo Moro”, Policlinico of Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy; (A.V.); (T.D.); (A.D.)
| | - Tommaso Difonzo
- Department of Interdisciplinary Medicine (DIM), Unit of Obstetrics and Gynecology, University of Bari “Aldo Moro”, Policlinico of Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy; (A.V.); (T.D.); (A.D.)
| | - Gaetano Riemma
- Department of Woman, Child and General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | - Liliana Mereu
- Unit of Obstetrics and Gynecology, Department of General Surgery and Medical-Surgical Specialism, University of Catania, P.O. “G. Rodolico”, Via Santa Sofia, 78, 95123 Catania, Italy;
| | - Alessandro Favilli
- Section of Obstetrics and Gynecology, Department of Medicine and Surgery, University of Perugia, 06135 Perugia, Italy;
| | - Panagiotis Peitsidis
- Department of Obstetrics and Gynecology, Helena Venizelou Hospital, 11521 Athens, Greece;
| | - Antonio D’Amato
- Department of Interdisciplinary Medicine (DIM), Unit of Obstetrics and Gynecology, University of Bari “Aldo Moro”, Policlinico of Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy; (A.V.); (T.D.); (A.D.)
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Slotman DJ, Nijholt IM, Schutte JM, Boomsma MF. No incision required for long-lasting symptom relief in a selection of women suffering from uterine fibroids. Eur Radiol 2023; 33:7357-7359. [PMID: 37740081 DOI: 10.1007/s00330-023-10197-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 07/09/2023] [Accepted: 08/15/2023] [Indexed: 09/24/2023]
Affiliation(s)
- Derk J Slotman
- Department of Radiology, Isala Hospital, Zwolle, The Netherlands.
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Ingrid M Nijholt
- Department of Radiology, Isala Hospital, Zwolle, The Netherlands
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Joke M Schutte
- Department of Gynecology, Isala Hospital, Zwolle, The Netherlands
| | - Martijn F Boomsma
- Department of Radiology, Isala Hospital, Zwolle, The Netherlands
- Imaging & Oncology Division, University Medical Center Utrecht, Utrecht, The Netherlands
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