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Journal of Medical Ultrasonics

Zuhal Bayramoglu, Ibrahim Adaletli, Ezgi Kara, Manolya Acar, Selda Hancerli Torun, Ozge Kaba, Ayper Somer, Gulcin Yegen, Sidar Bagbudar, Rukiye Eker Omeroglu
We present a delayed diagnosis of sarcoidosis in an 11-year-old girl by demonstrating ultrasonographic imaging findings of granulomatous cervical and abdominal lymph node involvement. Pulmonary interstitial fibrosis in addition to multi-compartmental enlarged echogenic lymph nodes could be considered sarcoidosis. Punctate echogenic foci in the cervical lymph nodes should be considered in the differential diagnosis of sarcoidosis.
February 8, 2019: Journal of Medical Ultrasonics
Kimio Sugaya, Katsumi Kadekawa, Yoshihiro Unten, Saori Nishijima, Katsuhiro Ashitomi, Hideyuki Yamamoto
PURPOSE: The relationship between blood flow and lower urinary tract disease was explored by measuring blood flow in the common iliac vein to examine the influence of pelvic congestion on lower urinary tract symptoms. METHODS: Color Doppler ultrasonography of the right common iliac vein was performed in 113 men and 60 women, who were outpatients of two Japanese hospitals. Average blood flow velocity and cross-sectional area of the vein were measured, and blood flow volume was calculated...
February 8, 2019: Journal of Medical Ultrasonics
Eda Albayrak, Sadık Server
PURPOSE: The aim of this study is to evaluate spleen stiffness values with shear wave elastography (SWE) quantitatively in healthy adults and investigate the relationship of spleen stiffness with age, gender, and spleen size. METHODS: This study included 65 healthy individuals. Spleen stiffness measurement was obtained with 2 dimensional (2-D) SWE method from the middle portion of spleen and calculated in kilopascals by taking the average of three valid measurements...
January 28, 2019: Journal of Medical Ultrasonics
Ryo Nagaoka, Hideyuki Hasegawa
PURPOSE: In the present study, we proposed a novel method for identification of the vascular lumen by employing singular value decomposition (SVD), and the feasibility of the proposed method was validated by in vivo measurement of the common carotid artery. METHOD: SVD filtering was applied to a velocity map that was estimated using an autocorrelation method to identify the lumen region. In this study, the packet size was set at 999 frames with a frame rate of 1302 Hz...
January 24, 2019: Journal of Medical Ultrasonics
Ya-Lan Pan, Yong Ma, Yang Guo, Juan Tu, Ge-Pu Guo, Shendu Marshall Ma, Su-Yang Zheng, Peng-Cheng Tu, Bei-Bei Yu, Gui-Cheng Huang
PURPOSE: Clematis chinensis Osbeck (CCO) is an essential herb that has been shown to promote the biological functions of cartilage cells. In this study, we aimed to explore whether and how low-intensity pulsed ultrasound (LIPUS) enhanced CCO delivery into chondrocytes and stimulated biological activity in vitro. METHODS: Chondrocytes were isolated from knee articular cartilage of 2-week-old rabbits and treated with LIPUS plus CCO or recombinant transforming growth factor beta 1 (TGF-β1; 0...
January 18, 2019: Journal of Medical Ultrasonics
Shui-Hua Yang, Xue-Qin Li, Zuo-Jian Yang, Xiao-Xian Tian, Hong-Wei Wei
Persistent truncus arteriosus (PTA) is a relatively uncommon congenital heart disease, accounting for approximately 0.7-1.4% of all congenital cardiac abnormalities worldwide. PTA is usually accompanied by a single semilunar valve, with leaflets ranging from one to six in number. However, absent semilunar valve (ASV) is rarely seen in PTA. Here, we report a case of prenatally diagnosed PTA accompanied by ASV (PTA-ASV) confirmed by postmortem autopsy.
January 14, 2019: Journal of Medical Ultrasonics
Onder Turna, Deniz Alis
PURPOSE: To evaluate the diagnostic value of shear wave elastography (SWE) in the evaluation of undescended and retractile testes (RT) in a pediatric population. METHODS: We prospectively evaluated a total of 37 undescended testes (UDT), 15 RT, and 56 normal testes using SWE. The stiffness values were recorded for speed (m/s) and elasticity (kPa), and the mean stiffness values of groups were compared with each other. RESULTS: The mean stiffness values of the UDT (13...
January 8, 2019: Journal of Medical Ultrasonics
Masaki Sekiguchi, Masashi Mikami, Chie Nakagawa, Mika Ozaki, Shinji Tanigaki, Tohru Kobayashi, Naoyuki Miyasaka, Haruhiko Sago
PURPOSE: The purpose was to establish an estimated fetal weight (EFW) reference for twin pregnancies in Japan and to compare the growth of twins with singletons. METHODS: We retrospectively investigated Japanese women who delivered live-born twins at our center during the period from 2010 to 2016. The main exclusion criteria were monoamniotic twins, fetal reduction, maternal complications, twin-twin transfusion syndrome, fetal congenital anomalies, and patients with their first visit after 16 weeks' gestation...
December 27, 2018: Journal of Medical Ultrasonics
Guoqing Sui, Qiang Luo, Jiarui Du, Dengke Teng, Hui Wang
PURPOSE: Evaluation of clinical application of ultrasound-guided percutaneous microwave ablation treatment for T1a renal carcinoma. METHODS: Analysis of the clinical data from 31 patients with T1aN0M0 stage renal carcinoma who underwent ultrasound-guided percutaneous microwave ablation in the Department of Ultrasound of China-Japan Union Hospital of Jilin University between March 2010 and June 2014. RESULTS: All of the 31 patients were treated with ablation only once: 96...
December 18, 2018: Journal of Medical Ultrasonics
Rie Oi, Naoyuki Miyasaka, Takahiro Yamashita, Tomoko Adachi
PURPOSE: A prospective assessment of the risk of spontaneous preterm delivery (sPTD) by evaluating temporal changes in cervical measurements. METHODS: We analyzed clinical variables, focusing on cervical length (CL) and lower uterine segment (LUS) length (LUSL) as measured by transvaginal ultrasonography in 727 pregnant Japanese women. RESULTS: In women undergoing term deliveries, CL increased from gestational week (GW) 8-25. In contrast, the combination of CL and LUSL (ComL for "combined length") gradually decreased and sole LUSL became almost 0 mm by GW 25...
December 1, 2018: Journal of Medical Ultrasonics
Takashi Kitagawa, Junsuke Nakase, Yasushi Takata, Kengo Shimozaki, Kazuki Asai, Hiroyuki Tsuchiya
PURPOSE: There has been no specific study on the quantitative morphological changes that occur in the infrapatellar fat pad (IPFP) after anterior cruciate ligament (ACL) reconstruction. We used ultrasonography to evaluate the dynamics of the IPFP in knees after ACL reconstruction using the contralateral knees as controls. METHODS: We enrolled 31 patients 3 months after they underwent ACL reconstruction. The thickness of the superficial part of the IPFP was measured using longitudinally oriented ultrasound images of the anterior part of both knees at 90° and 10° flexion...
November 19, 2018: Journal of Medical Ultrasonics
Yoshiki Hirooka
No abstract text is available yet for this article.
January 2019: Journal of Medical Ultrasonics
Yoshiki Hirooka
No abstract text is available yet for this article.
January 2019: Journal of Medical Ultrasonics
Hiroshi Katayama
No abstract text is available yet for this article.
January 2019: Journal of Medical Ultrasonics
Yukako Tsujimoto, Mai Morimoto, Naotaka Nitta, Iwaki Akiyama
PURPOSE: Tissue characterization in terms of the differences in thermo-physical properties of biological tissues was investigated in this study. The objective was to measure the ratio of variation in sound velocity due to ultrasonic heating and to derive the relational expression between the ratio and thermo-physical properties. METHODS: The ratio of sound velocity variation before and after the temperature rise of tissue samples exposed to ultrasound was measured by ultrasonic pulse echo method...
November 15, 2018: Journal of Medical Ultrasonics
Keiichiro Abe, Mototaka Arakawa, Hiroshi Kanai
PURPOSE: With commercial ultrasonic equipment, the sound velocity is fixed to a constant value of 1530 or 1540 m/s, which is used for beam formation. However, the assumption of a constant sound velocity is not optimal, as the sound velocity in a living body is heterogeneous. In this study, a novel method was proposed to estimate the distribution of the sound velocity in a region of interest. METHODS: The sound velocity distribution was estimated by fitting the theoretical propagation time of the ultrasonic wave from the scatterer to each of the probe elements with measured values...
November 15, 2018: Journal of Medical Ultrasonics
Meng Xie, Yu Feng, Xuyin Zhang, Keqin Hua, Yunyun Ren, Wenping Wang
PURPOSE: To assess the elasticity of the pelvic floor muscle (PFM) affected by deep infiltrating endometriosis (DIE) with transperineal elastography. METHODS: This prospective observational study included 88 patients who were diagnosed with DIE, ovarian endometrioid cyst, or ovarian teratoma. All the patients were assigned to one of the three groups and underwent transperineal elastography. The scoring system and strain ratio (SR) values were recorded and analyzed...
October 25, 2018: Journal of Medical Ultrasonics
Nurlan Zhampeissov, Erlan Manap, Kulsara Rustemova, Galina Fedotovskikh, Turlybek Tuganbekov, Suindyk Imankulov, Abduzhappar Gaipov
Liver alveococcosis is a life-threatening parasitic disease with progressive growth and wide metastasis to neighboring tissues, lungs, and brain. The radical treatment option is surgery along with a few chemical therapies. However, the frequency of progression and recurrence, as well as postoperative complications and mortality, remains very high. The high-intensity focused ultrasound (HIFU) treatment system, a therapeutic application using ultrasound to deliver heat or agitation into the body, was initially designed to treat cancer...
October 23, 2018: Journal of Medical Ultrasonics
Ertan Yetkin, Selçuk Öztürk
No abstract text is available yet for this article.
October 22, 2018: Journal of Medical Ultrasonics
Kazumi Fujioka
No abstract text is available yet for this article.
October 22, 2018: Journal of Medical Ultrasonics
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