Aim: The aim of the current study was to investigate whether iodized oil (IO) enhances high-intensity focused ultrasound (HIFU) ablation of uterine leiomyoma and to determine the features of hyperechoic changes in the target region.
Methods: Forty samples of uterine leiomyoma were randomly divided into an experimental group and a control group. In the experimental group, the leiomyoma was ablated by HIFU 30 min after 1 mL of iodized oil had been injected into the center of the myoma. The hyperechoic values and areas in the target region were observed by B-modal ultrasound after HIFU ablation. The samples were cut successively into slices and stained by triphenyltetrazolium chloride (TTC) solution within 1 h after HIFU ablation. The diameters of TTC-non-stained areas were measured and tissues in the borderline of the TTC-stained and -non-stained areas were observed pathologically. All procedures in the control group were the same as those in the experimental group except IO was replaced by physiological saline.
Results: The hyperechoic value in the target region in the experimental group was higher than that in the control group 4 min after HIFU ablation (P < 0.05). Hyperechoic areas in the target region as well as TTC-non-stained volumes in the experimental group were greater than those in the control group (P < 0.05). Routine pathologic observation showed that coagulation necrosis of leiomyoma occurred in the target region in both groups.
Conclusion: IO causes coagulation necrosis, enlarges tissue damage, and postpones the attenuation of hyperechoic changes in the target region when HIFU ablation is carried out for leiomyoma in vitro.
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http://dx.doi.org/10.1111/jog.13407 | DOI Listing |
Front Physiol
December 2024
Department of Radiology, Yiyang Central Hospital, Yiyang, China.
Objectives: To evaluate the effectiveness of an MRI radiomics stacking ensemble learning model, which combines T2-weighted imaging (T2WI) and contrast-enhanced T1-weighted imaging (CE-T1WI) with deep learning-based automatic segmentation, for preoperative prediction of the prognosis of high-intensity focused ultrasound (HIFU) ablation of uterine fibroids.
Methods: This retrospective study collected data from 360 patients with uterine fibroids who underwent HIFU treatment. The dataset was sourced from Center A (training set: N = 240; internal test set: N = 60) and Center B (external test set: N = 60).
Int J Hyperthermia
December 2025
State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical Unibersity, Chongqing, China.
Objective: To develop and validate a nomogram for predicting the effectiveness of high-intensity focused ultrasound (HIFU) ablation for uterine fibroids based on oxytocin experiments combined with sonographic features.
Methods: Sixty patients with uterine fibroids treated with HIFU combined with oxytocin for uterine fibroids were retrospectively analyzed. Before HIFU treatment, all patients underwent abdominal ultrasonography and oxytocin testing for classification.
Biomed Chromatogr
February 2025
College of Pharmacy, Chongqing Medical University, Chongqing, China.
High-intensity focused ultrasound (HIFU) is a noninvasive soft tissue ablation technique, which utilizes ultrasound energy to induce thermal coagulation necrosis in targeted tissues. Whether this high energy causes side effects in vivo, such as the formation of peptide bonds, has not been fully investigated. Glycylglycine is the simplest dipeptide and hence is often used as a model compound for peptide studies.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA.
This paper describes the design and initial proof-of-concept of a single pre-clinical transcranial focused ultrasound (FUS) system capable of performing histotripsy (mechanical ablation), hyperthermia, blood-brain barrier opening (BBBO), sonodynamic therapy, or neuromodulation in a murine brain. We have termed it the All-in-One FUS system for murine brain studies, which is the first FUS system of its kind. The 1.
View Article and Find Full Text PDFWorld J Urol
December 2024
Desai Sethi Urology Institute, University of Miami Miller School of Medicine, 1120 NW 14th Street, Miami, FL, 33136, USA.
Purpose: In patients with prostate cancer (PCa), focal therapy with High-Intensity Focused Ultrasound (HIFU) combined with benign prostatic hyperplasia (BPH) surgery has been used to improve immediate post-operative voiding symptoms. Our study aimed to evaluate the functional outcomes of patients undergoing simultaneous holmium laser enucleation of the prostate (HoLEP) + HIFU and compare them to those who underwent HoLEP for bladder outlet obstruction secondary to BPH.
Methods: We performed retrospective review of patients who underwent HoLEP + HIFU or HoLEP between June 2017 and May 2024.
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