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Huang Q, Zhou Y, Pan L, Chen Y, Wang N, Li K, Bai J, Ji X. Experimental Evaluation of an Ultrasound-Guided High-Intensity-Focused Ultrasound Probe for Sonication of Artery. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2024. [PMID: 39240034 DOI: 10.1002/jum.16571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 07/23/2024] [Accepted: 08/24/2024] [Indexed: 09/07/2024]
Abstract
OBJECTIVES This study aimed to develop an ultrasound-guided high-intensity-focused ultrasound (USgHIFU) probe for arterial sonication and to evaluate vascular contraction. METHODS The USgHIFU probe comprised two confocal spherical transducers for sonication and a US color Doppler flow imaging probe for guidance. A vessel-mimicking phantom was sonicated in two directions. In the vascular radial direction, an isolated rabbit aorta embedded in ex vivo pork liver was sonicated at different acoustic powers (245 and 519 W), flow rates (25, 30, and 50 mL/minute), and sonication energies (519, 980, and 1038 J). Changes in the postsonication vessels were evaluated using US imaging, microscopic observation, and histopathological analysis. RESULTS Beam focusing along the vascular radial direction caused significant deformation of both tube walls (n = 4), whereas focusing along the axial direction only affected the contraction of the anterior wall (n = 4). The contraction index (Dc) of the vessel sonicated at 245 W and 980 J was 56.2 ± 9.7% (n = 12) with 25 mL/minute. The Dc of the vessel sonicated at 519 W and 1038 J was 56.5 ± 7.8% (n = 17). The Dc of the vessel sonicated at 519 J total energy was 18.3 ± 5.1% (n = 12). CONCLUSION The developed USgHIFU probe induced greater vascular contractions by covering a larger area of the vessel wall in the radial direction. Sonication energy affects vascular contraction through temperature elevation of the vessel wall. When the acoustic power was high, an increase in acoustic power, even with comparable sonication energy, did not result in greater vessel contraction.
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Affiliation(s)
- Qianwen Huang
- Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yun Zhou
- Department of Ultrasonography, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Pan
- Department of Pathology, International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yini Chen
- Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Department of Ultrasonography, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Nianou Wang
- Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Ke Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jingfeng Bai
- Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Med-X Engineering Research Center, Shanghai Jiao Tong University, Shanghai, China
| | - Xiang Ji
- Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Med-X Engineering Research Center, Shanghai Jiao Tong University, Shanghai, China
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Twin Reversed Arterial Perfusion Sequence: Prenatal Diagnosis and Treatment. MATERNAL-FETAL MEDICINE 2022. [DOI: 10.1097/fm9.0000000000000172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Ichizuka K, Seo K, Izudepski T, Nagatsuka M. High-intensity focused ultrasound for noninvasive fetal therapy. J Med Ultrason (2001) 2022:10.1007/s10396-022-01199-2. [PMID: 35278169 DOI: 10.1007/s10396-022-01199-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/27/2022] [Indexed: 10/18/2022]
Abstract
High-intensity focused ultrasound (HIFU) consists of an ultrasonic beam that is focused within the body to induce tissue necrosis through both heat energy and as a result of cavitation, which occurs without damaging any intervening tissues. Therefore, it is possible to cauterize and treat tumors without surgical invasion by administering HIFU irradiation from outside the body. This approach has been clinically applied in various fields in recent years, and fetal therapy is no exception, with several clinical applications reported, mainly in basic experiments. This review summarizes the recent basic and clinical findings focusing on fetal treatment with HIFU.
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Affiliation(s)
- Kiyotake Ichizuka
- Department of Obstetrics and Gynecology, Showa University Northern Yokohama Hospital, Chigasakichuo, Tsuduki-ku, Yokohama City, Kanagawa, 224-8503, Japan.
| | - Kohei Seo
- Department of Obstetrics and Gynecology, Showa University Northern Yokohama Hospital, Chigasakichuo, Tsuduki-ku, Yokohama City, Kanagawa, 224-8503, Japan
| | - Tetsuya Izudepski
- Department of Obstetrics and Gynecology, Showa University Northern Yokohama Hospital, Chigasakichuo, Tsuduki-ku, Yokohama City, Kanagawa, 224-8503, Japan
| | - Masaaki Nagatsuka
- Department of Obstetrics and Gynecology, Showa University Northern Yokohama Hospital, Chigasakichuo, Tsuduki-ku, Yokohama City, Kanagawa, 224-8503, Japan
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Meng YL, Ren LJ, Yin SW. Bibliometric analysis of research hotspots and development trends in selective fetal reduction. J Obstet Gynaecol Res 2021; 47:1694-1703. [PMID: 33634542 DOI: 10.1111/jog.14721] [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: 09/28/2020] [Revised: 01/03/2021] [Accepted: 02/05/2021] [Indexed: 10/22/2022]
Abstract
AIM To evaluate the theme trends and knowledge structure of multifetal pregnancy reduction (MPR)-related literature by using bibliometric analysis. METHODS Published scientific papers regarding MPR were retrieved from the PubMed database. Data extraction and statistics were conducted using Bibliographic Item Co-Occurrence Matrix Builder (BICOMB). Furthermore, gCLUTO software was used in the study for bi-clustering analysis and strategic diagram analysis. RESULTS According to the search strategy, 906 total papers were included. Among all the extracted MeSH terms, 41 high frequency ones were identified and hotspots were clustered into four categories. In the strategic diagram, research on intrauterine treatment of MPR was most well developed. In contrast, statistical data on the sequelae of fetal reduction surgery and applications of MPR in assisted reproductive technologies were relatively immature. CONCLUSION The analysis of common terms among the high-frequency network terms in multiparous pregnancy reduction can help researchers and clinicians understand the hotspots, key topics, and issues to be discovered on MPR. Research on intrauterine treatment of MPR was most well developed.
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Affiliation(s)
- Yi L Meng
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, Liaoning Province, China
| | - Li J Ren
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, Liaoning Province, China
| | - Shao W Yin
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, Liaoning Province, China
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Seo K, Ichizuka K, Okai T, Dohi S, Nakamura M, Hasegawa J, Matsuoka R, Yoshizawa S, Umemura SI, Nagatsuka M, Sekizawa A. Treatment of twin-reversed arterial perfusion sequence using high-intensity focused ultrasound. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2019; 54:128-134. [PMID: 30136326 DOI: 10.1002/uog.20101] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 07/31/2018] [Accepted: 08/10/2018] [Indexed: 06/08/2023]
Abstract
We describe our experience of high-intensity focused ultrasound (HIFU) for fetal therapy in twin-reversed arterial perfusion (TRAP) sequence. Six pregnant women underwent HIFU therapy, five before 16 weeks and one at 26 weeks. Two types of HIFU system were used: the first-generation system, which comprised a biaxial transducer and continuous exposure pattern, and the second-generation system, which comprised a coaxial transducer and sequential exposure pattern. The first-generation apparatus was used in four cases and the second-generation apparatus was used in two. In three cases, occlusion of the blood vessels mediating flow to the acardiac twin was achieved by HIFU. Two cases experienced intrauterine fetal death despite vessel occlusion. The total survival rate of pump fetuses 2 years after HIFU was 67% and the efficiency rate (the proportion of cases with occlusion or reduced blood flow on ultrasound after HIFU) was 83%. After more than 2 years of follow-up, the surviving infants had no severe clinical complications and no postnatal developmental problems. There was no significant difference in survival rate compared with TRAP cases managed expectantly. Given that complete occlusion of the blood vessels was not achieved in half of the cases, we could not show that HIFU therapy is superior to other treatments. However, HIFU can reduce the cardiac load of the pump fetus and, as it does not require uterine puncture for fetal therapy, there were no fatal complications, such as bleeding, rupture of membranes or infection. Thus, HIFU therapy may represent a less-invasive treatment for TRAP sequence in early pregnancy. Copyright © 2018 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- K Seo
- Showa University, School of Medicine, Department of Obstetrics and Gynecology, Tokyo, Japan
| | - K Ichizuka
- Showa University, School of Medicine, Department of Obstetrics and Gynecology, Tokyo, Japan
| | - T Okai
- Showa University, School of Medicine, Department of Obstetrics and Gynecology, Tokyo, Japan
| | - S Dohi
- Showa University, School of Medicine, Department of Obstetrics and Gynecology, Tokyo, Japan
| | - M Nakamura
- Showa University, School of Medicine, Department of Obstetrics and Gynecology, Tokyo, Japan
| | - J Hasegawa
- St Marianna University, School of Medicine, Department of Obstetrics and Gynecology, Kanagawa, Japan
| | - R Matsuoka
- Showa University, School of Medicine, Department of Obstetrics and Gynecology, Tokyo, Japan
| | - S Yoshizawa
- Tohoku University, Graduate School of Biomedical Engineering, Miyagi, Japan
| | - S-I Umemura
- Tohoku University, Graduate School of Biomedical Engineering, Miyagi, Japan
| | - M Nagatsuka
- Showa University, School of Medicine, Department of Obstetrics and Gynecology, Tokyo, Japan
| | - A Sekizawa
- Showa University, School of Medicine, Department of Obstetrics and Gynecology, Tokyo, Japan
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Tsujimoto Y, Morimoto M, Nitta N, Akiyama I. Ultrasonic measurement of sound velocity fluctuations in biological tissue due to ultrasonic heating and estimation of thermo-physical properties. J Med Ultrason (2001) 2018; 46:35-43. [DOI: 10.1007/s10396-018-0916-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 10/14/2018] [Indexed: 10/27/2022]
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Nawapun K, Phithakwatchara N, Jaingam S, Viboonchart S, Mongkolchat N, Wataganara T. Advanced ultrasound for prenatal interventions. Ultrasonography 2018; 37:200-210. [PMID: 29852543 PMCID: PMC6044223 DOI: 10.14366/usg.18011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 05/02/2018] [Indexed: 12/29/2022] Open
Abstract
Ultrasound is an integral part of prenatal interventions. Doppler studies and 3-dimensional ultrasound (3DUS) are frequently used to determine whether fetal surgery is required. The operator's experience remains crucial for reducing procedure-related morbidity. Real-time 3DUS (or 4DUS) can simultaneously display the needle tip in three orthogonal planes, providing reassurance that no fetal parts are in the path. In experienced hands, 4DUS guidance may not be more effective than B-mode, but its value for less-experienced operators remains to be determined. Recent developments in needle, shunt, and video endoscopic technologies may compliment the use of image-guided in utero procedures. Future developments of higher-dimensional transducers and image software may improve the utility of ultrasound for invasive obstetric interventions.
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Affiliation(s)
- Katika Nawapun
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Siriraj Hospital, Bangkok, Thailand
| | - Nisarat Phithakwatchara
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Siriraj Hospital, Bangkok, Thailand
| | - Suparat Jaingam
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Siriraj Hospital, Bangkok, Thailand
| | - Sommai Viboonchart
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Siriraj Hospital, Bangkok, Thailand
| | - Nadda Mongkolchat
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Siriraj Hospital, Bangkok, Thailand
| | - Tuangsit Wataganara
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Siriraj Hospital, Bangkok, Thailand
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SEO K, ICHIZUKA K, OKAI T, NAKAMURA M, HASEGAWA JI, MATSUOKA R, KITADAI Y, SUMIE M, TSUKIMORI K, YOSHIZAWA S, UMEMURA SI, SEKIZAWA A. Evaluation of Second-generation HIFU Systems: Less-invasive Fetal Therapy for TRAP Sequence. ACTA ACUST UNITED AC 2017. [DOI: 10.15369/sujms.29.241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kohei SEO
- Showa University, School of Medicine, Department of Obstetrics and Gynecology
| | - Kiyotake ICHIZUKA
- Showa University, School of Medicine, Department of Obstetrics and Gynecology
| | - Takashi OKAI
- Aiiku Hospital, Department of Obstetrics and Gynecology
| | - Masamitsu NAKAMURA
- Showa University, School of Medicine, Department of Obstetrics and Gynecology
| | - Jun-ichi HASEGAWA
- St. Marianna University, School of Medicine, Department of Obstetrics and Gynecology
| | - Ryu MATSUOKA
- Showa University, School of Medicine, Department of Obstetrics and Gynecology
| | - Yuzo KITADAI
- Fukuoka Children's Hospital, Department of Obstetrics and Gynecology
| | - Masahiro SUMIE
- Fukuoka Children's Hospital, Department of Obstetrics and Gynecology
| | - Kiyomi TSUKIMORI
- Fukuoka Children's Hospital, Department of Obstetrics and Gynecology
| | - Shin YOSHIZAWA
- Tohoku University, Graduate School of Biomedical Engineering
| | | | - Akihiko SEKIZAWA
- Showa University, School of Medicine, Department of Obstetrics and Gynecology
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