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Ponomarchuk E, Tsysar S, Kvashennikova A, Chupova D, Pestova P, Danilova N, Malkov P, Buravkov S, Khokhlova V. Pilot Study on Boiling Histotripsy Treatment of Human Leiomyoma Ex Vivo. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:1255-1261. [PMID: 38762389 DOI: 10.1016/j.ultrasmedbio.2024.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/20/2024]
Abstract
OBJECTIVE As an alternative to surgical excision and magnetic resonance-guided thermal high-intensity focused ultrasound ablation of uterine leiomyoma, this work was aimed at pilot feasibility demonstration of use of ultrasound-guided boiling histotripsy for non-invasive non-thermal fractionation of human uterine leiomyoma ex vivo. METHODS A custom-made sector ultrasound transducer of 1.5-MHz operating frequency and nominal f-number F# = 0.75 was used to produce a volumetric lesion (two layers of 5 × 5 foci with a 1 mm step) in surgically resected human leiomyoma ex vivo. A sequence of 10 ms pulses (P+/P-/As = 157/-25/170 MPa in situ) with 1% duty cycle was delivered N = 30 times per focus under B-mode guidance. The treatment outcome was evaluated via B-mode imaging and histologically with hematoxylin and eosin and Masson's trichrome staining. RESULTS The treatment was successfully performed in less than 30 min and resulted in formation of a rectangular lesion visualized on B-mode images during the sonication as an echogenic region, which sustained for about 10 min post-treatment. Histology revealed loss of cellular structure, necrotic debris and globules of degenerated collagen in the target volume surrounded by injured smooth muscle cells. CONCLUSION The pilot experiment described here indicates that boiling histotripsy is feasible for non-invasive mechanical disintegration of human uterine leiomyoma ex vivo under B-mode guidance, encouraging further investigation and optimization of this potential clinical application of boiling histotripsy.
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Affiliation(s)
| | - Sergey Tsysar
- Physics Faculty, Lomonosov Moscow State University, Moscow, Russia
| | | | - Daria Chupova
- Physics Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - Polina Pestova
- Physics Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - Natalia Danilova
- Lomonosov Moscow State University, Medical Research and Educational Center, Moscow, Russia
| | - Pavel Malkov
- Lomonosov Moscow State University, Medical Research and Educational Center, Moscow, Russia
| | - Sergey Buravkov
- Lomonosov Moscow State University, Faculty of Fundamental Medicine, Moscow, Russia
| | - Vera Khokhlova
- Physics Faculty, Lomonosov Moscow State University, Moscow, Russia
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Barat M, Dohan A, Kohi M, Marcelin C, Pelage JP, Denys A, Mafeld S, Kaufman CS, Soyer P, Cornelis FH. Treatment of adenomyosis, abdominal wall endometriosis and uterine leiomyoma with interventional radiology: A review of current evidences. Diagn Interv Imaging 2024; 105:87-96. [PMID: 38065817 DOI: 10.1016/j.diii.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 11/21/2023] [Indexed: 01/16/2024]
Abstract
Interventional radiology shows promises in the field of women's health, particularly in pelvic interventions. This review article discusses the latest advancements in interventional radiology techniques for pelvic conditions affecting women including adenomyosis, abdominal wall endometriosis and uterine leiomyoma. Extraperitoneal endometriosis involving the abdominal wall may be treated by percutaneous thermal ablation, such as cryoablation, whereas uterine leiomyoma and adenomyosis can be managed either using percutaneous thermal ablation or using uterine artery embolization. Continued research and development in interventional radiology will further enhance the minimally-invasive interventions available for women's health, improving outcomes and quality of life for this large patient population of women.
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Affiliation(s)
- Maxime Barat
- Department of Radiology, Hopital Cochin, AP-HP, 75014 Paris, France; Université Paris Cité, Faculté de Médecine, 75006 Paris, France
| | - Anthony Dohan
- Department of Radiology, Hopital Cochin, AP-HP, 75014 Paris, France; Université Paris Cité, Faculté de Médecine, 75006 Paris, France
| | - Maureen Kohi
- Department of Radiology, University of North Carolina at Chapel Hill, NC 27599, USA
| | - Clement Marcelin
- Department of Radiology, Centre Hospitalo-Universitaire de Bordeaux, 33076 Bordeaux, France
| | - Jean-Pierre Pelage
- Department of Radiology, Research Institute of McGill University Health Centre, McGill University Health Centre, McGill University, Montreal, QC H4A 3J1, Canada
| | - Alban Denys
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital CHUV, Lausanne and University of Lausanne (UNIL), 1011 Lausanne, Switzerland
| | - Sebastian Mafeld
- Department of Medical Imaging, Division of Vascular and Interventional Radiology, Toronto General Hospital, University of Toronto, Toronto, ON, M5G 2C4, Canada
| | - Claire S Kaufman
- Dotter Interventional Institute, Oregon Health & Science University, Portland, OR 97239-3011, USA
| | - Philippe Soyer
- Department of Radiology, Hopital Cochin, AP-HP, 75014 Paris, France; Université Paris Cité, Faculté de Médecine, 75006 Paris, France
| | - Francois H Cornelis
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Weill Cornell Medical College, New York, NY 10065, USA.
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Cai Y, Sun Y, Xu F, Wu Y, Ren C, Hao X, Gao B, Cao Q. Effects of high-intensity focused ultrasound combined with levonorgestrel-releasing intrauterine system on patients with adenomyosis. Sci Rep 2023; 13:9903. [PMID: 37336924 DOI: 10.1038/s41598-023-37096-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 06/15/2023] [Indexed: 06/21/2023] Open
Abstract
It is very important to treat adenomyosis which may cause infertility, menorrhagia, and dysmenorrhea for women at the reproductive age. High-intensity focused ultrasound (HIFU) is effective in destroying target tumor tissues without damaging the path of the ultrasound beam and surrounding normal tissues. The levonorgestrel-releasing intrauterine system (LN-IUS) is a medical system which is inserted into the uterine to provide medicinal treatment for temporary control of the symptoms caused by adenomyosis. This study was to investigate the effect of HIFU combined with the LN-IUS on adenomyosis. In the HIFU treatment, the parameters of the ultrasound were transmission frequency 0.8 MHz and input power 50-400 W (350 ± 30), and the temperature in the target tissue under these conditions would reach 60-100 °C (85 °C ± 6.3 °C). Size reduction and blood flow signal decrease were used to assess the effect of combined treatment. In this study, 131 patients with adenomyosis treated with HIFU combined with LN-IUS were retrospectively enrolled. The clinical and follow-up data were analyzed. After treatment, the volume of the uterine lesion was significantly decreased with an effective rate of 72.1%, and the adenomyosis blood flow signals were significantly reduced, with an effective rate of 71.3%. At six months, the menstrual cycle was significantly (P < 0.05) decreased from 31.4 ± 3.5 days before treatment to 28.6 ± 1.9 days, the menstrual period was significantly shortened from 7.9 ± 1.2 days before HIFU to 6.5 ± 1.3 days, and the menstrual volume was significantly (P < 0.05) decreased from 100 to 49% ± 13%. The serum hemoglobin significantly (P < 0.05) increased from 90.8 ± 6.2 g/L before treatment to 121.6 ± 10.8 g/L at six months for patients with anemia. Among seventy-two (92.3%) patients who finished the six-month follow-up, sixty-five (90.3%) patients had the dysmenorrhea completely relieved, and the other seven (9.7%) patients had only slight dysmenorrhea which did not affect their daily life. Adverse events occurred in 24 (18.3%) patients without causing severe consequences, including skin burns in two (1.5%) patients, skin swelling in four (3.1%), mild lower abdominal pain and low fever in 15 (11.5%), and subcutaneous induration in three (2.3%). Six months after treatment, no other serious side effects occurred in any patients with follow-up. In conclusions, the use of high-intensity focused ultrasound combined with the levonorgestrel-releasing intrauterine system for the treatment of adenomyosis is safe and effective even though the long-term effect remains to be confirmed.
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Affiliation(s)
- Yuru Cai
- Department of Obstetrics and Gynecology, Shijiazhuang People's Hospital, 365 South Jianhua Street, Shijiazhuang, 050030, Hebei Province, China
| | - Yanan Sun
- Department of Obstetrics and Gynecology, Shijiazhuang People's Hospital, 365 South Jianhua Street, Shijiazhuang, 050030, Hebei Province, China
| | - Feng Xu
- Department of Obstetrics and Gynecology, Shijiazhuang People's Hospital, 365 South Jianhua Street, Shijiazhuang, 050030, Hebei Province, China
| | - Yunzhe Wu
- Department of Obstetrics and Gynecology, Shijiazhuang People's Hospital, 365 South Jianhua Street, Shijiazhuang, 050030, Hebei Province, China
| | - Chunfeng Ren
- Department of Laboratory Analysis, The First Affiliated Hospital of Zhengzhou University, 1 Longhu Middle Ring Road, Zhengzhou, 450018, Henan Province, China
| | - Xiaohong Hao
- Department of Obstetrics and Gynecology, Shijiazhuang People's Hospital, 365 South Jianhua Street, Shijiazhuang, 050030, Hebei Province, China
| | - Bulang Gao
- Department of Obstetrics and Gynecology, Shijiazhuang People's Hospital, 365 South Jianhua Street, Shijiazhuang, 050030, Hebei Province, China
| | - Qinying Cao
- Department of Obstetrics and Gynecology, Shijiazhuang People's Hospital, 365 South Jianhua Street, Shijiazhuang, 050030, Hebei Province, China.
- Shijiazhuang People's Hospital, 365 South Jianhua Street, Shijiazhuang, 050030, Hebei Province, China.
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Napoli A, Alfieri G, Andrani F, Scipione R, Manganaro L, Pecorini F, Catalano C. Uterine Myomas: Focused Ultrasound Surgery. Semin Ultrasound CT MR 2020; 42:25-36. [PMID: 33541586 DOI: 10.1053/j.sult.2020.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Uterine fibroids are the most common neoplasm in women. These lesions may be associated with impaired fertility and adverse obstetric outcomes. Medical treatment, myomectomy, hysterectomy and uterine artery embolization have been employed for the management of uterine fibroids. Focused ultrasound surgery (FUS) is a relatively recent technique that relies on mechanical and thermal energy of ultrasound for the ablation of a target tissue under an imaging guidance, that can be either ultrasound (US-guided FUS, USgFUS) or magnetic resonance (MR-guided FUS, MRgFUS). Pre- and peri-menopausal women are potential candidates for treatment; however, individual criteria need to be evaluated in order to establish the eligibility for the procedure. FUS procedure can be performed in an outpatient setting; it is a safe and effective treatment that has demonstrated to reduce symptoms associated with uterine fibroids. The adverse event rate is 8.7% and only 0.2% of patients experiences major complications. Pregnancy is possible after the treatment, and no damage to the endometrium has been observed following FUS procedure.
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Affiliation(s)
- Alessandro Napoli
- Department of Radiological, Oncological and Pathological Sciences, Policlinico Umberto I - Sapienza University of Rome, Rome, Italy.
| | - Giulia Alfieri
- Department of Radiological, Oncological and Pathological Sciences, Policlinico Umberto I - Sapienza University of Rome, Rome, Italy
| | - Fabrizio Andrani
- Department of Radiological, Oncological and Pathological Sciences, Policlinico Umberto I - Sapienza University of Rome, Rome, Italy
| | - Roberto Scipione
- Department of Radiological, Oncological and Pathological Sciences, Policlinico Umberto I - Sapienza University of Rome, Rome, Italy
| | - Lucia Manganaro
- Department of Radiological, Oncological and Pathological Sciences, Policlinico Umberto I - Sapienza University of Rome, Rome, Italy
| | - Francesco Pecorini
- Department of Gynecology-Obstetrics and Urology, Policlinico Umberto I - Sapienza University of Rome, Rome, Italy
| | - Carlo Catalano
- Department of Radiological, Oncological and Pathological Sciences, Policlinico Umberto I - Sapienza University of Rome, Rome, Italy
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Weston M, Soyer P, Barral M, Dohan A, Pierre S, Rabei R, Garcia-Reyes K, Kohi MP. Role of Interventional Procedures in Obstetrics and Gynecology. Radiol Clin North Am 2020; 58:445-462. [PMID: 32044017 DOI: 10.1016/j.rcl.2019.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Radiological guided intervention techniques are discussed in obstetric and gynecologic patients. Fallopian tube recanalization, postpartum hemorrhage control, techniques of treating uterine leiomyomas, pelvic congestion treatment, and the use of percutaneous and transvaginal ultrasonography-guided aspirations and biopsy are covered. These techniques use basic radiological interventional skills and show how they are adapted for use in the female pelvis.
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Affiliation(s)
- Michael Weston
- Department of Radiology, St James's University Hospital, Leeds LS9 7TF, UK.
| | - Philippe Soyer
- Department of Radiology, Service de Radiologie A, Hopital Cochin, APHP & Université de Paris-Descartes Paris 5, 27 rue du Faubourg Saint-Jacques, Paris 75014, France
| | - Matthias Barral
- Department of Radiology, Service de Radiologie A, Hopital Cochin, APHP & Université de Paris-Descartes Paris 5, 27 rue du Faubourg Saint-Jacques, Paris 75014, France
| | - Anthony Dohan
- Department of Radiology, Service de Radiologie A, Hopital Cochin, APHP & Université de Paris-Descartes Paris 5, 27 rue du Faubourg Saint-Jacques, Paris 75014, France
| | - Sacha Pierre
- Department of Radiology, St James's University Hospital, Leeds LS9 7TF, UK
| | - Rana Rabei
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Avenue, M-361, San Francisco, CA 94143, USA
| | - Kirema Garcia-Reyes
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Avenue, M-361, San Francisco, CA 94143, USA
| | - Maureen P Kohi
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Avenue, M-361, San Francisco, CA 94143, USA
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6
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Rundo L, Tangherloni A, Cazzaniga P, Nobile MS, Russo G, Gilardi MC, Vitabile S, Mauri G, Besozzi D, Militello C. A novel framework for MR image segmentation and quantification by using MedGA. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2019; 176:159-172. [PMID: 31200903 DOI: 10.1016/j.cmpb.2019.04.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 04/14/2019] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND AND OBJECTIVES Image segmentation represents one of the most challenging issues in medical image analysis to distinguish among different adjacent tissues in a body part. In this context, appropriate image pre-processing tools can improve the result accuracy achieved by computer-assisted segmentation methods. Taking into consideration images with a bimodal intensity distribution, image binarization can be used to classify the input pictorial data into two classes, given a threshold intensity value. Unfortunately, adaptive thresholding techniques for two-class segmentation work properly only for images characterized by bimodal histograms. We aim at overcoming these limitations and automatically determining a suitable optimal threshold for bimodal Magnetic Resonance (MR) images, by designing an intelligent image analysis framework tailored to effectively assist the physicians during their decision-making tasks. METHODS In this work, we present a novel evolutionary framework for image enhancement, automatic global thresholding, and segmentation, which is here applied to different clinical scenarios involving bimodal MR image analysis: (i) uterine fibroid segmentation in MR guided Focused Ultrasound Surgery, and (ii) brain metastatic cancer segmentation in neuro-radiosurgery therapy. Our framework exploits MedGA as a pre-processing stage. MedGA is an image enhancement method based on Genetic Algorithms that improves the threshold selection, obtained by the efficient Iterative Optimal Threshold Selection algorithm, between the underlying sub-distributions in a nearly bimodal histogram. RESULTS The results achieved by the proposed evolutionary framework were quantitatively evaluated, showing that the use of MedGA as a pre-processing stage outperforms the conventional image enhancement methods (i.e., histogram equalization, bi-histogram equalization, Gamma transformation, and sigmoid transformation), in terms of both MR image enhancement and segmentation evaluation metrics. CONCLUSIONS Thanks to this framework, MR image segmentation accuracy is considerably increased, allowing for measurement repeatability in clinical workflows. The proposed computational solution could be well-suited for other clinical contexts requiring MR image analysis and segmentation, aiming at providing useful insights for differential diagnosis and prognosis.
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Affiliation(s)
- Leonardo Rundo
- Department of Informatics, Systems and Communication, University of Milano-Bicocca, Milan, Italy; Institute of Molecular Bioimaging and Physiology, Italian National Research Council, Cefalù, PA, Italy; Department of Radiology, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre, Cambridge, UK.
| | - Andrea Tangherloni
- Department of Informatics, Systems and Communication, University of Milano-Bicocca, Milan, Italy; Department of Haematology, University of Cambridge, Cambridge, UK; Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, UK.
| | - Paolo Cazzaniga
- Department of Human and Social Sciences, University of Bergamo, Bergamo, Italy; SYSBIO.IT Centre of Systems Biology, Milan, Italy.
| | - Marco S Nobile
- Department of Informatics, Systems and Communication, University of Milano-Bicocca, Milan, Italy; SYSBIO.IT Centre of Systems Biology, Milan, Italy.
| | - Giorgio Russo
- Institute of Molecular Bioimaging and Physiology, Italian National Research Council, Cefalù, PA, Italy.
| | - Maria Carla Gilardi
- Institute of Molecular Bioimaging and Physiology, Italian National Research Council, Cefalù, PA, Italy.
| | - Salvatore Vitabile
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy.
| | - Giancarlo Mauri
- Department of Informatics, Systems and Communication, University of Milano-Bicocca, Milan, Italy; SYSBIO.IT Centre of Systems Biology, Milan, Italy.
| | - Daniela Besozzi
- Department of Informatics, Systems and Communication, University of Milano-Bicocca, Milan, Italy.
| | - Carmelo Militello
- Institute of Molecular Bioimaging and Physiology, Italian National Research Council, Cefalù, PA, Italy.
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Sridhar D, Kohi MP. Updates on MR-Guided Focused Ultrasound for Symptomatic Uterine Fibroids. Semin Intervent Radiol 2018; 35:17-22. [PMID: 29628611 PMCID: PMC5886770 DOI: 10.1055/s-0038-1636516] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Magnetic-resonance-guided focused ultrasound (MRgFUS), also called high-intensity focused ultrasound (HIFU) is an effective, noninvasive uterine-preserving treatment for symptomatic uterine fibroids. As the use of this therapeutic modality is not yet widespread, it may remain unfamiliar to many interventional radiologists. The purpose of this review is to discuss MRgFUS, including technology, patient selection, technique, outcomes, complications, and recent data on fertility and comparative effectiveness.
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Affiliation(s)
- Divya Sridhar
- Department of Radiology, NYU Langone Health, New York, New York
| | - Maureen P. Kohi
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, California
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Shea J, de Bever J, Kholmovski E, Beal H, Hadley JR, Minalga E, Salama ME, Marrouche NF, Payne A. Effect of applied energy in renal sympathetic denervation with magnetic resonance guided focused ultrasound in a porcine model. J Ther Ultrasound 2017; 5:16. [PMID: 28616236 PMCID: PMC5467056 DOI: 10.1186/s40349-017-0094-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 03/27/2017] [Indexed: 11/30/2022] Open
Abstract
Background Past catheter-based and focused ultrasound renal denervation studies have indicated that procedure efficacy is related to the number of ablations performed or the amount of energy used for the ablation. This study extends those prior results and investigates energy level effects on the efficacy of MR guided focused ultrasound renal denervation performed in a porcine model. Methods Twenty-four normotensive pigs underwent unilateral denervation at three intensity levels. The applied intensity level was retrospectively de-rated to account for variability in animal size. Efficacy was assessed through evaluating the norepinephrine present in the kidney medulla and through histological analysis. The treatment was performed under MRI guidance including pre- and post-procedure T1-weighted and quantitative T1 and T2 imaging. During treatment, the temperature in the near field of the ultrasound beam was monitored in real time with MR temperature imaging. Energy delivery in the regions surrounding the renal artery was independently confirmed through an invasive fiberoptic temperature probe placed in the right renal artery. Results Animals that underwent denervation at a de-rated acoustic intensity of greater than 1.2 kW/cm2 had a significantly lower norepinephrine concentration in the kidney indicating successful denervation. Images obtained during the treatment indicated no tissue changes in the kidneys as a function of the procedure but there were significant T1 changes present in the right lumbar muscles, although only one animal had indication of muscle damage at the time of necropsy. Conclusions While MR guided focused ultrasound renal denervation was found to be safe and effective in this normotensive animal model, the results indicated the need to incorporate patient-specific details in the treatment planning of MRgFUS renal denervation procedure.
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Affiliation(s)
- Jill Shea
- Department of Surgery, University of Utah, 30 North 1900 East, Salt Lake City, UT 84132 USA
| | - Joshua de Bever
- Department of Radiology and Imaging Sciences, University of Utah, 729 Arapeen Drive, Salt Lake City, UT 84108 USA
| | - Eugene Kholmovski
- Department of Radiology and Imaging Sciences, University of Utah, 729 Arapeen Drive, Salt Lake City, UT 84108 USA
| | - Hannah Beal
- Department of Surgery, University of Utah, 30 North 1900 East, Salt Lake City, UT 84132 USA
| | - J Rock Hadley
- Department of Radiology and Imaging Sciences, University of Utah, 729 Arapeen Drive, Salt Lake City, UT 84108 USA
| | - Emilee Minalga
- Department of Radiology and Imaging Sciences, University of Utah, 729 Arapeen Drive, Salt Lake City, UT 84108 USA
| | - Mohamed E Salama
- Department of Pathology, University of Utah, 15 North Medical Drive East Ste #1100, Salt Lake City, UT 84112 USA
| | - Nassir F Marrouche
- CARMA Center, Department of Cardiology, University of Utah, 30 North 1900 East, Salt Lake City, UT 84132 USA
| | - Allison Payne
- Department of Radiology and Imaging Sciences, University of Utah, 729 Arapeen Drive, Salt Lake City, UT 84108 USA
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Silberzweig JE, Powell DK, Matsumoto AH, Spies JB. Management of Uterine Fibroids: A Focus on Uterine-sparing Interventional Techniques. Radiology 2017; 280:675-92. [PMID: 27533290 DOI: 10.1148/radiol.2016141693] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Uterine fibroids occur in approximately 50% of women over the age of 40 years, and an estimated 50% of those are symptomatic. Menorrhagia is the most common symptom and the primary indication for treatment, although bulk symptoms often occur and can be treated. Pharmacotherapy is typically inadequate unless it can be expected to successfully bridge to menopause or allow for a less-invasive intervention. However, hormonal therapies have risks. Hysterectomy is still the most commonly performed procedure for symptomatic fibroids and has the lowest rate of reintervention (compared with myomectomy or uterine artery embolization [UAE]), but rates of more serious complications are higher and patient satisfaction and ability to return to normal activities may also be less favorable. Myomectomy is not necessarily less morbid than hysterectomy and may have a greater failure rate than UAE. Techniques and devices vary with little standardization, and operator experience is crucial to success. The largest studies of UAE show very low rates of serious complications and rapid recovery. UAE significantly improves symptoms related to uterine fibroids in 85%-90% of patients. Herein, this article will discuss the nature of fibroids and their diagnosis, pharmacotherapy, surgical treatment, and nonsurgical interventional treatment, including UAE and magnetic resonance-guided focused ultrasound. (©) RSNA, 2016.
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Affiliation(s)
- James E Silberzweig
- From the Department of Radiology, Mount Sinai Beth Israel, New York, NY (J.E.S.); West Cancer Center, University of Tennessee Health Science Center, 7945 Wolf River Boulevard, Germantown, TN 38138 (D.K.P.); Department of Radiology and Medical Imaging, University of Virginia Health System, Charlottesville, Va (A.H.S.); and Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (J.B.S.)
| | - Daniel K Powell
- From the Department of Radiology, Mount Sinai Beth Israel, New York, NY (J.E.S.); West Cancer Center, University of Tennessee Health Science Center, 7945 Wolf River Boulevard, Germantown, TN 38138 (D.K.P.); Department of Radiology and Medical Imaging, University of Virginia Health System, Charlottesville, Va (A.H.S.); and Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (J.B.S.)
| | - Alan H Matsumoto
- From the Department of Radiology, Mount Sinai Beth Israel, New York, NY (J.E.S.); West Cancer Center, University of Tennessee Health Science Center, 7945 Wolf River Boulevard, Germantown, TN 38138 (D.K.P.); Department of Radiology and Medical Imaging, University of Virginia Health System, Charlottesville, Va (A.H.S.); and Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (J.B.S.)
| | - James B Spies
- From the Department of Radiology, Mount Sinai Beth Israel, New York, NY (J.E.S.); West Cancer Center, University of Tennessee Health Science Center, 7945 Wolf River Boulevard, Germantown, TN 38138 (D.K.P.); Department of Radiology and Medical Imaging, University of Virginia Health System, Charlottesville, Va (A.H.S.); and Department of Radiology, MedStar Georgetown University Hospital, Washington, DC (J.B.S.)
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Magnetic Resonance Imaging-Guided Focused Ultrasound Surgery for the Treatment of Symptomatic Uterine Fibroids. Case Rep Radiol 2017; 2017:2520989. [PMID: 28553555 PMCID: PMC5434313 DOI: 10.1155/2017/2520989] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 03/10/2017] [Accepted: 04/02/2017] [Indexed: 01/24/2023] Open
Abstract
Uterine fibroids, the most common benign tumor in women of childbearing age, may cause symptoms including pelvic pain, menorrhagia, dysmenorrhea, pressure, urinary symptoms, and infertility. Various approaches are available to treat symptomatic uterine fibroids. Magnetic Resonance-guided Focused Ultrasound Surgery (MRgFUS) represents a recently introduced noninvasive safe and effective technique that can be performed without general anesthesia, in an outpatient setting. We review the principles of MRgFUS, describing patient selection criteria for the treatments performed at our center and we present a series of five selected patients with symptomatic uterine fibroids treated with this not yet widely known technique, showing its efficacy in symptom improvement and fibroid volume reduction.
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Masciocchi C, Arrigoni F, Ferrari F, Giordano AV, Iafrate S, Capretti I, Cannizzaro E, Reginelli A, Ierardi AM, Floridi C, Angileri AS, Brunese L, Barile A. Uterine fibroid therapy using interventional radiology mini-invasive treatments: current perspective. Med Oncol 2017; 34:52. [PMID: 28236104 DOI: 10.1007/s12032-017-0906-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 02/12/2017] [Indexed: 01/10/2023]
Abstract
Uterine fibroids are common benign tumors of unclear etiopathology that affect the female reproductive tract. They are responsible for considerable morbidity and deterioration of life quality, and may have a negative impact on the reproductive system as well. Besides surgery aided by uterus-saving techniques, several minimally invasive procedures are now available within the field of interventional radiology that represent a valid solution for women who desire pregnancy and relief from disease-specific symptomatology. The main advantages offered by these techniques are low grade of invasiveness and short times of hospitalization. The most diffuse techniques are uterine artery embolization (UAE) and magnetic resonance-guided high-intensity focused ultrasound (MRgFUS). UAE is an endovascular procedure whose goal is obtained by provoking ischemia of the uterine vessels. MRgFUS is a thermoablation procedure that selectively ablates the symptomatic fibroids. In this review study, both procedures will be described, including a description of technical details, indications, contraindications, complications, and outcomes.
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Affiliation(s)
- Carlo Masciocchi
- Diagnostic and Interventional Radiology, Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy.
| | - Francesco Arrigoni
- Diagnostic and Interventional Radiology, Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy
| | - Fabiana Ferrari
- Diagnostic and Interventional Radiology, Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy
| | - Aldo Victor Giordano
- Diagnostic and Interventional Radiology, Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy
| | - Sonia Iafrate
- Diagnostic and Interventional Radiology, Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy
| | - Ilaria Capretti
- Diagnostic and Interventional Radiology, Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy
| | - Ester Cannizzaro
- Diagnostic and Interventional Radiology, Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy
| | - Alfonso Reginelli
- Department of Internal and Experimental Medicine, Magrassi-Lanzara, Institute of Radiology, Second University of Naples, Naples, Italy
| | | | - Chiara Floridi
- Department of Radiology, Insubria University, Varese, Italy
| | | | - Luca Brunese
- Department of Medicine and Health Science "V. Tiberio", University of Molise, Campobasso, Italy
| | - Antonio Barile
- Diagnostic and Interventional Radiology, Department of Applied Clinical Science and Biotechnology, University of L'Aquila, L'Aquila, Italy
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Shalaby SM, Khater MK, Perucho AM, Mohamed SA, Helwa I, Laknaur A, Lebedyeva I, Liu Y, Diamond MP, Al-Hendy AA. Magnetic nanoparticles as a new approach to improve the efficacy of gene therapy against differentiated human uterine fibroid cells and tumor-initiating stem cells. Fertil Steril 2016; 105:1638-1648.e8. [PMID: 27020169 DOI: 10.1016/j.fertnstert.2016.03.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 03/02/2016] [Accepted: 03/03/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To study whether efficient transduction and subsequent elimination of fibroid tumor-initiating stem cells during debulking of tumor cells will aid in completely eradicating the tumor as well as decreasing the likelihood of recurrence. DESIGN Case control study. SETTING Research laboratory. PATIENT(S) None. INTERVENTION(S) Magnetic nanoparticles (MNPs) complexed to adenovirus (Ad-GFP) or (Ad-LacZ) used to transfect differentiated human fibroid cells in vitro. MAIN OUTCOME MEASURE(S) Rate of transduction and tumor growth inhibition. RESULT(S) We have developed a localized nonsurgical adenovirus-based alternative for the treatment of uterine fibroids that combines viral-based gene delivery with nanotechnology for more efficient targeting. Magnetic nanoparticles complexed to adenovirus, in the presence of an external magnetic field, accelerate adenovirus transduction. We observed a statistically significant increase in transduction efficiency among differentiated human fibroid cells at two different multiplicities of infection (MOI), 1 and 10, respectively, with MNPs as compared with adenovirus alone. Human fibroid stem cells transfected with Ad-LacZ expressed β-galactosidaze at a MOI of 1, 10, and 50 at 19%, 62%, and 90%, respectively, which were statistically significantly enhanced with MNPs. CONCLUSION(S) When applied with adenovirus herpes simplex thymidine kinase, magnetofection statistically significantly suppressed proliferation and induced apoptosis in both cell types. Through the use of magnetofection, we will prove that a lower viral dose will effectively increase the overall safety profile of suicide gene therapy against fibroid tumors.
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Affiliation(s)
- Shahinaz Mahmood Shalaby
- Department of Obstetrics and Gynecology, Georgia Regents University, Augusta, Georgia; Department of Pharmacology, Tanta Faculty of Medicine, Tanta, Egypt
| | - Mostafa K Khater
- Department of Obstetrics and Gynecology, Georgia Regents University, Augusta, Georgia
| | - Aymara Mas Perucho
- Department of Obstetrics and Gynecology, Georgia Regents University, Augusta, Georgia
| | - Sara A Mohamed
- Department of Obstetrics and Gynecology, Georgia Regents University, Augusta, Georgia; Department of Obstetrics and Gynecology, Mansoura University Hospital, Mansoura Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Inas Helwa
- Department of Cell Biology and Anatomy, Georgia Regents University, Augusta, Georgia
| | - Archana Laknaur
- Department of Obstetrics and Gynecology, Georgia Regents University, Augusta, Georgia
| | - Iryna Lebedyeva
- Department of Chemistry and Physics, Georgia Regents University, Augusta, Georgia
| | - Yutao Liu
- Department of Cell Biology and Anatomy, Georgia Regents University, Augusta, Georgia
| | - Michael P Diamond
- Department of Obstetrics and Gynecology, Georgia Regents University, Augusta, Georgia
| | - Ayman A Al-Hendy
- Department of Obstetrics and Gynecology, Georgia Regents University, Augusta, Georgia.
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Chernack B, Knowlton SE, Kohler MJ. The Use of Ultrasound in Palliative Care and Hospice. Am J Hosp Palliat Care 2016; 34:385-391. [DOI: 10.1177/1049909115625960] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Palliative care aims to reduce symptom burden and enhance quality of life for those with terminal disease. Ultrasound has become an increasingly popular diagnostic and therapeutic modality due to its low cost, ease of portability, safety, and good patient acceptance. A review of the literature to date shows that as a diagnostic tool, as a therapeutic modality, and as a tool to accurately guide palliative procedures, ultrasound can have many roles in palliative care and hospice. Based on our clinical experience, musculoskeletal ultrasound can be of benefit to patients with terminal disease. Examples include adhesive capsulitis in advanced neurologic disease and chronic osteomyelitis in a patient with metastatic colon cancer. Ideally, further studies investigating the use of ultrasound in the palliative care population will be conducted in the future to enhance the availability of diagnostic and therapeutic capabilities of this particular modality.
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Affiliation(s)
- Betty Chernack
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Sasha E. Knowlton
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Minna J. Kohler
- Harvard Medical School, Boston, MA, USA
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, MA, USA
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14
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Combining split-and-merge and multi-seed region growing algorithms for uterine fibroid segmentation in MRgFUS treatments. Med Biol Eng Comput 2015; 54:1071-84. [PMID: 26530047 DOI: 10.1007/s11517-015-1404-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 10/03/2015] [Indexed: 10/22/2022]
Abstract
Uterine fibroids are benign tumors that can affect female patients during reproductive years. Magnetic resonance-guided focused ultrasound (MRgFUS) represents a noninvasive approach that uses thermal ablation principles to treat symptomatic fibroids. During traditional treatment planning, uterus, fibroids, and surrounding organs at risk must be manually marked on MR images by an operator. After treatment, an operator must segment, again manually, treated areas to evaluate the non-perfused volume (NPV) inside the fibroids. Both pre- and post-treatment procedures are time-consuming and operator-dependent. This paper presents a novel method, based on an advanced direct region detection model, for fibroid segmentation in MR images to address MRgFUS post-treatment segmentation issues. An incremental procedure is proposed: split-and-merge algorithm results are employed as multiple seed-region selections by an adaptive region growing procedure. The proposed approach segments multiple fibroids with different pixel intensity, even in the same MR image. The method was evaluated using area-based and distance-based metrics and was compared with other similar works in the literature. Segmentation results, performed on 14 patients, demonstrated the effectiveness of the proposed approach showing a sensitivity of 84.05 %, a specificity of 92.84 %, and a speedup factor of 1.56× with respect to classic region growing implementations (average values).
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Militello C, Vitabile S, Rundo L, Russo G, Midiri M, Gilardi MC. A fully automatic 2D segmentation method for uterine fibroid in MRgFUS treatment evaluation. Comput Biol Med 2015; 62:277-92. [DOI: 10.1016/j.compbiomed.2015.04.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 04/01/2015] [Accepted: 04/18/2015] [Indexed: 11/17/2022]
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Bitton RR, Webb TD, Pauly KB, Ghanouni P. Improving thermal dose accuracy in magnetic resonance-guided focused ultrasound surgery: Long-term thermometry using a prior baseline as a reference. J Magn Reson Imaging 2015; 43:181-9. [PMID: 26119129 DOI: 10.1002/jmri.24978] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 06/01/2015] [Indexed: 01/02/2023] Open
Abstract
PURPOSE To investigate thermal dose volume (TDV) and non-perfused volume (NPV) of magnetic resonance-guided focused ultrasound (MRgFUS) treatments in patients with soft tissue tumors, and describe a method for MR thermal dosimetry using a baseline reference. MATERIALS AND METHODS Agreement between TDV and immediate post treatment NPV was evaluated from MRgFUS treatments of five patients with biopsy-proven desmoid tumors. Thermometry data (gradient echo, 3T) were analyzed over the entire course of the treatments to discern temperature errors in the standard approach. The technique searches previously acquired baseline images for a match using 2D normalized cross-correlation and a weighted mean of phase difference images. Thermal dose maps and TDVs were recalculated using the matched baseline and compared to NPV. RESULTS TDV and NPV showed between 47%-91% disagreement, using the standard immediate baseline method for calculating TDV. Long-term thermometry showed a nonlinear local temperature accrual, where peak additional temperature varied between 4-13°C (mean = 7.8°C) across patients. The prior baseline method could be implemented by finding a previously acquired matching baseline 61% ± 8% (mean ± SD) of the time. We found 7%-42% of the disagreement between TDV and NPV was due to errors in thermometry caused by heat accrual. For all patients, the prior baseline method increased the estimated treatment volume and reduced the discrepancies between TDV and NPV (P = 0.023). CONCLUSION This study presents a mismatch between in-treatment and post treatment efficacy measures. The prior baseline approach accounts for local heating and improves the accuracy of thermal dose-predicted volume.
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Affiliation(s)
- Rachel R Bitton
- School of Medicine, Department of Radiology, Stanford University, Stanford, California, USA
| | - Taylor D Webb
- Department of Electrical Engineering, Stanford University, Stanford, California, USA
| | - Kim Butts Pauly
- School of Medicine, Department of Radiology, Stanford University, Stanford, California, USA
| | - Pejman Ghanouni
- School of Medicine, Department of Radiology, Stanford University, Stanford, California, USA
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17
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Babashov V, Palimaka S, Blackhouse G, O'Reilly D. Magnetic Resonance-Guided High-Intensity Focused Ultrasound (MRgHIFU) for Treatment of Symptomatic Uterine Fibroids: An Economic Analysis. ONTARIO HEALTH TECHNOLOGY ASSESSMENT SERIES 2015; 15:1-61. [PMID: 26357531 PMCID: PMC4558770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Uterine fibroids, or leiomyomas, are the most common benign tumours in women of childbearing age. Some women experience symptoms (e.g., heavy bleeding) that require aggressive forms of treatment such as uterine artery embolization (UAE), myomectomy, magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU), and even hysterectomy. It is important to note that hysterectomy is not appropriate for women who desire future childbearing. OBJECTIVES The objective of this analysis was to evaluate the cost-effectiveness and budgetary impact of implementing MRgHIFU as a treatment option for symptomatic uterine fibroids in premenopausal women for whom drugs have been ineffective. REVIEW METHODS We performed an original cost-effectiveness analysis to assess the long-term costs and effects of MRgHIFU compared with hysterectomy, myomectomy, and UAE as a strategy for treating symptomatic uterine fibroids in premenopausal women aged 40 to 51 years. We explored a number of scenarios, e.g., comparing MRgHIFU with uterine-preserving procedures only, considering MRgHIFU-eligible patients only, and eliminating UAE as a treatment option. In addition, we performed a one-year budget impact analysis, using data from Ontario administrative sources. Four scenarios were explored in the budgetary impact analysis: •MRgHIFU funded at 2 centres •MRgHIFU funded at 2 centres and replacing only uterine-preserving procedures •MRgHIFU funded at 6 centres •MRgHIFU funded at 6 centres and replacing only uterine-preserving procedures Analyses were conducted from the Ontario public payer perspective. RESULTS The base case determined that the uterine artery embolization (UAE) treatment strategy was the cost-effective option at commonly accepted willingness-to-pay values. Compared with hysterectomy, UAE was calculated as having an incremental cost-effectiveness ratio (ICER) of $46,480 per quality-adjusted life-year (QALY) gained. The MRgHIFU strategy was extendedly dominated by a combination of UAE and hysterectomy, and myomectomy was strictly dominated by MRgHIFU and UAE. In the scenario where only MRgHIFU-eligible patients were considered, MRgHIFU was the cost-effective option for a willingness-to-pay threshold of $50,000. In the scenario where only MRgHIFU-eligible patients were considered and where UAE was eliminated as a treatment option (due to its low historic utilization in Ontario), MRgHIFU was cost-effective with an incremental cost of $39,250 per additional QALY. The budgetary impact of funding MRgHIFU for treatment of symptomatic uterine fibroids was estimated at $1.38 million in savings when funded to replace all types of procedures at 2 centres, and $1.14 million when funded to replace only uterine-preserving procedures at 2 centres. The potential savings increase to $4.15 million when MRgHIFU is funded at 6 centres to treat all women eligible for the procedure. Potential savings at 6 centres decrease slightly, to $3.42 million, when MRgHIFU is funded to replace uterine-preserving procedures only. CONCLUSIONS Our findings suggest that MRgHIFU may be a cost-effective strategy at commonly accepted willingness-to-pay thresholds, after examining the uncertainty in model parameters and several likely scenarios. In terms of budget impact, the implementation of MRgHIFU could potentially result in one-year savings of $1.38 million and $4.15 million in the scenarios where MRgHIFU is implemented in 2 or 6 centres, respectively. From a patient perspective, it is important to consider that MRgHIFU is the least invasive of all fibroid treatment options for women who have not responded to pharmaceuticals; it is the only one that is completely noninvasive. Also important, from a societal point of view, is the potential benefit from faster recovery times. Despite these benefits, implementation of MRgHIFU beyond the 2 centres which currently offer the treatment faces logistical challenges (for example, competing demands for use of existing equipment), as well as financial challenges, with hospitals needing to fundraise to purchase new equipment.
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Pron G. Magnetic Resonance-Guided High-Intensity Focused Ultrasound (MRgHIFU) Treatment of Symptomatic Uterine Fibroids: An Evidence-Based Analysis. ONTARIO HEALTH TECHNOLOGY ASSESSMENT SERIES 2015; 15:1-86. [PMID: 26357530 PMCID: PMC4558769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) is a noninvasive uterine-preserving treatment alternative to hysterectomy for women with symptomatic uterine leiomyomas (fibroids). Uterine fibroids commonly occur, have a broad impact on women's health and lifestyle, continue to be the main indication for hysterectomy, and represent a costly public health burden. OBJECTIVES The objectives of the analysis were to evaluate patients' eligibility for MRgHIFU treatment of symptomatic uterine fibroids and the technical success, safety, effectiveness, and durability of this treatment. The review also compared the safety and effectiveness of MRgHIFU with other minimally invasive uterine-preserving treatments and surgeries for uterine fibroids. METHODS A literature search was performed on March 27, 2014, using Ovid MEDLINE, Ovid MEDLINE In-Process and Other Non-Indexed Citations, Ovid EMBASE, EBSCO Cumulative Index to Nursing & Allied Health Literature (CINAHL), and EBM Reviews, for studies published from January 1, 2000, to March 27, 2014. RESULTS The evidence review identified 2 systematic reviews, 2 RCTs, 45 cohort study reports, and 19 case reports involving HIFU treatment of symptomatic uterine fibroids. Eligibility for MRgHIFU treatment was variable, ranging from 14% to 74%. In clinical cohort studies involving 1,594 patients, 26 major complications (1.6%) were reported. MRgHIFU resulted in statistically and clinically significant reductions in fibroid-related symptoms in studies conducted in 10 countries, although few involved follow-up longer than 1 year. Retreatment rates following MRgHIFU were higher in early clinical studies involving regulated restrictions in the extent of fibroid ablation than in later reports involving near-complete ablation. Emergent interventions, however, were rare. Although a desire for fertility was an exclusion criteria for treatment, spontaneous term pregnancies did occur following HIFU. There were no randomized trials comparing MRgHIFU and other guidance methods, other minimally invasive treatments, or surgeries for symptomatic uterine fibroids. Limitations with MRgHIFU included restricted eligibility, requirement for a dedicated MR device to guide the treatment, lengthy procedure time, and loss of MR opportunity time. CONCLUSIONS For women failing medical therapy and seeking alternatives to hysterectomy for symptomatic uterine fibroids, MRgHIFU provides a safe and effective, noninvasive, uterine-preserving treatment from which they rapidly recover. The treatment advantages of MRgHIFU are potentially offset by restrictive eligibility, lengthy procedure time, and dependence on availability of an MR device. The lack of comparative evidence between MRgHIFU and other, more established uterine-preserving treatments limits informed decision making among treatment options.
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Clark NA, Mumford SL, Segars JH. Reproductive impact of MRI-guided focused ultrasound surgery for fibroids: a systematic review of the evidence. Curr Opin Obstet Gynecol 2014; 26:151-61. [PMID: 24751998 PMCID: PMC4137489 DOI: 10.1097/gco.0000000000000070] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Magnetic-resonance-guided focused ultrasound surgery (MRgFUS) is a minimally invasive technique for the treatment of uterine fibroids. The purpose of this review is to highlight the impact of MRgFUS on fertility and reproductive outcomes. RECENT FINDINGS The role of MRgFUS in the treatment of fibroids has been evolving since its introduction in 2004. Several new devices and techniques including location-specific treatment, volumetric therapy, and vessel-targeted therapy have been introduced over the last few years. Several case series report uncomplicated pregnancy following MRgFUS; however, results of the ongoing studies will further elucidate the utility of MRgFUS in patients planning future fertility. A systematic review of the literature was completed and studies that reported quality of life at baseline and after 6 months were included in a meta-analysis. SUMMARY MRgFUS represents a minimally invasive treatment for uterine fibroids that is able to improve the quality of life and fibroid size with durability. It is possible that MRgFUS could be the treatment of choice for patients desiring future fertility; however, further investigation is needed.
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Affiliation(s)
- Natalie A. Clark
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan
| | - Sunni L. Mumford
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
| | - James H. Segars
- Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
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MR-guided focused ultrasound for the treatment of uterine fibroids. Cardiovasc Intervent Radiol 2012; 36:5-13. [PMID: 22453202 DOI: 10.1007/s00270-012-0367-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 01/31/2012] [Indexed: 10/28/2022]
Abstract
Magnetic resonance imaging-guided focused ultrasound (MRgFUS) ablation of uterine fibroids provides a minimally invasive outpatient technique for targeting and treating symptomatic uterine fibroids. Magnetic resonance imaging provides a guidance platform that has high temporal and spatial resolution for guiding, as well as thermal monitoring of the procedure. The high-intensity focused ultrasound provides a mechanism for delivering large amounts of energy directly into the fibroid without causing detrimental effects to the nontarget tissues. Early and intermediate follow-up of patients treated with MRgFUS provided promising results on the efficacy of the technique for providing symptom relief to patients. As more long-term follow-up data are published, the efficacy of this technique can be compared to more invasive surgical and minimally invasive catheter treatments.
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