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Journal of Medical Ultrasonics

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https://www.readbyqxmd.com/read/29052791/potential-diagnostic-performance-of-contrast-enhanced-ultrasound-and-tumor-markers-in-differentiating-combined-hepatocellular-cholangiocarcinoma-from-hepatocellular-carcinoma-and-cholangiocarcinoma
#1
Xiao-Wen Huang, Yang Huang, Li-da Chen, Zhu Wang, Zheng Yang, Jin-Ya Liu, Xiao-Yan Xie, Ming-De Lu, Shun-Li Shen, Wei Wang
PURPOSE: To evaluate the diagnostic performance of the combination of tumor markers [alpha-fetoprotein (AFP) and carbohydrate antigen 19-9 (CA19-9)] and imaging features in differentiating combined hepatocellular-cholangiocarcinoma (CHC) from hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC). METHODS: Forty consecutive patients with pathologically proven CHC were retrospectively evaluated with contrast-enhanced ultrasound (CEUS). Additionally, 40 HCC and 40 CC patients who were randomly selected from the same period served as a control group...
October 20, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29027063/inflammatory-myofibroblastic-tumors-of-the-breast-with-simultaneous-intracranial-lung-and-pancreas-involvement-ultrasonographic-findings-and-a-review-of-the-literature
#2
Mari Inoue, Tomoyuki Ohta, Hisashi Shioya, Shun Sato, Hiroyuki Takahashi, Norio Nakata, Chiaki Taniguchi, Megumi Hirano, Makiko Nishioka, Hironori Yamakawa
We encountered a case of inflammatory myofibroblastic tumor (IMT) of the breast with simultaneous intracranial, lung, and pancreas involvement. Here, we present the clinical imaging results and report the significance of sonographic findings of breast IMT along with a review of the literature. A 16-year-old girl with a history of subarachnoidal hemorrhage was admitted to our hospital due to tonic-clonic seizure. Computed tomography (CT) and magnetic resonance imaging (MRI) showed multiple intracranial, lung, and pancreas mass lesions and a solitary mass lesion in the right breast...
October 12, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29027037/optimal-surface-property-for-three-dimensional-echo-visualization
#3
Shunsuke Asakura, Saki Nishikawa, Kazumasa Orihashi, Yoshio Inoue
PURPOSE: Three-dimensional (3D) echo is a useful modality to guide off-pump intracardiac surgery, and this study aimed to determine the optimal surface property for minimizing echo dropout and grating lobes. METHODS: A total of 13 specimens were examined. The specimens were scanned while they were rotated from 0° to 90°, and en face views were recorded in the 3D zoom mode. Changes in brightness were compared with the surface profile, which was traced from microscopic images...
October 12, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28988329/ultrasonography-and-return-to-play-of-the-different-clinical-grading-of-quadriceps-contusions-a-case-series
#4
Rolando Junior L Torres, Soichi Hattori, Yuki Kato, Shin Yamada, Hiroshi Ohuchi
Prognostication of quadriceps contusion is based on the patient's active knee flexion after the injury. Unlike ultrasonography, clinical grading does not define the extent of soft tissue injury and may provide inaccurate time for return to play. The purposes of this report are to describe the ultrasound findings of the different clinical grading of quadriceps contusion and document the return to play of each case. Seven patients were evaluated in this series. Results showed discrepancies in the disability time between clinical grading and ultrasound findings...
October 7, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28956192/auto-strain-ratio-system-for-the-quality-control-of-breast-strain-elastography
#5
Kazutaka Nakashima, Akiko Mizutou, Sayaka Sakurai
PURPOSE: To determine the reproducibility, accuracy, and quantitative values of the auto strain ratio system (ASRS)-a newly developed strain elastography-based program. MATERIALS AND METHODS: First, the accuracy of ASRS was verified using a breast phantom. A prospective clinical study was then performed in patients. Two hundred and one women (mean age 52.4 years ± SD 14.5) with 232 breast lesions (177 benign and 55 malignant) were enrolled in this study. We assessed the correlation between ASRS and manual strain ratio (MSR), calculating the diagnostic performance to determine the cut-off...
September 27, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28933006/erratum-to-attempt-at-standardization-of-bone-quantitative-ultrasound-in-japan
#6
Takahiko Otani, Masao Fukunaga, Kosei Yoh, Takami Miki, Kaoru Yamazaki, Hideaki Kishimoto, Mami Matsukawa, Nobuyuki Endoh, Hiroyuki Hachiya, Hiroshi Kanai, Saeko Fujiwara, Yoshinori Nagai
In the original version of the article, the third author name was incorrectly published. The correct name is Kosei Yoh.
September 20, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28905199/early-prenatal-diagnosis-of-a-lumbo-costo-vertebral-syndrome
#7
Anda Ioana Pristavu, Cristina Furnica, Mona Mihaela Ifrim, Razvan Mihai Popovici
Lumbo-costo-vertebral syndrome (LCVS) is a rare type of lumbar hernia with associated abnormalities of the vertebral bodies, ribs, and trunk muscles. Only a few cases have been reported in the literature, all of which were diagnosed after birth. We present a case of LCVS diagnosed early in the second trimester of pregnancy using two- and three-dimensional ultrasound. In our case, the associated anomalies were: multiple costovertebral anomalies, lumbar hernia, anal imperforation, left hand supernumerary digit, and clubfoot...
September 13, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28905143/the-value-of-quantitative-shear-wave-elastography-in-differentiating-the-cervical-lymph-nodes-in-patients-with-thyroid-nodules
#8
Jun You, Juan Chen, Feixiang Xiang, Yue Song, Simai Khamis, Chengfa Lu, Qing Lv, Yanrong Zhang, Mingxing Xie
PURPOSE: This study aimed at evaluating the diagnostic performance of quantitative shear wave elastography (SWE) in differentiating metastatic cervical lymph nodes from benign nodes in patients with thyroid nodules. METHODS: One hundred and forty-one cervical lymph nodes from 39 patients with thyroid nodules that were diagnosed as papillary thyroid cancer had been imaged with SWE. The shear elasticity modulus, which indicates the stiffness of the lymph nodes, was measured in terms of maximum shear elasticity modulus (maxSM), minimum shear elasticity modulus (minSM), mean shear elasticity modulus (meanSM), and standard deviation (SD) of the shear elasticity modulus...
September 13, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28900767/quantitative-assessment-of-muscular-stiffness-in-children-with-cerebral-palsy-using-acoustic-radiation-force-impulse-arfi-ultrasound-elastography
#9
Meltem Ceyhan Bilgici, Tumay Bekci, Yasemin Ulus, Hamit Ozyurek, Omer Faruk Aydin, Leman Tomak, Mustafa Bekir Selcuk
PURPOSE: To evaluate the feasibility of quantitative analysis of muscle stiffness in the medial gastrocnemius muscle (GCM) by acoustic radiation force impulse (ARFI) ultrasound elastography in children with spastic cerebral palsy (CP). METHODS: Seventeen children with spastic CP and 25 healthy children participated in the study between the years 2016-2017. The medial GCM in the CP group was assessed using the Modified Ashworth Scale (MAS) by a physiatrist. ARFI was used to measure the shear-wave velocities (SWVs) of the medial GCM...
September 12, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28900725/contrast-enhanced-ultrasonography-evaluation-of-hepatocellular-carcinoma-with-peritumoral-fat-spared-area-a-case-report
#10
Atsuyuki Ikeda, Yoko Oiwa, Hiroyuki Kokuryu
Peritumoral fat-spared area (PTFSA), a focal spared area surrounding hepatic tumors, is a specific finding of liver tumors in fatty livers. PTFSA mimics a liver tumor, making it difficult to recognize the tumor boundary. We report a case of a 56-year-old man with fatty liver who was diagnosed with a liver tumor. Ultrasonography (US) revealed a nearly homogeneous hyperechoic liver tumor measuring 40 mm in the left lobe. A thick hypoechoic area was observed around the tumor that spread more widely than an ordinary halo...
September 12, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28894991/preoperatively-determining-the-margins-of-subcutaneous-malignant-soft-tissue-tumours-using-contrast-enhanced-ultrasonography
#11
Sota Oguro, Kazutaka Kikuta, Aya Sasaki, Kiyoshi Okuma, Shunsuke Matsumoto, Hiroaki Sugiura, Hideo Morioka, Masaya Nakamura, Morio Matsumoto, Masahiro Jinzaki
The purpose of this technical report is to demonstrate the feasibility of contrast-enhanced ultrasonography for preoperative evaluation of the lateral extent of subcutaneous malignant soft tissue tumours. Patients with subcutaneous malignant soft tissue tumours who underwent surgery between March 2016 and May 2016 were selected for inclusion. Contrast-enhanced ultrasonography using Sonazoid(®) was performed 1 day before the operation. The tumour margin was determined based on contrast-enhanced ultrasonography and marked on the skin using a permanent marker...
September 11, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28884290/attempt-at-standardization-of-bone-quantitative-ultrasound-in-japan
#12
REVIEW
Takahiko Otani, Masao Fukunaga, Kosei Yho, Takami Miki, Kaoru Yamazaki, Hideaki Kishimoto, Mami Matsukawa, Nobuyuki Endoh, Hiroyuki Hachiya, Hiroshi Kanai, Saeko Fujiwara, Yoshinori Nagai
Dual X-ray absorptiometry (DXA) is used to diagnose osteoporosis. On the other hand, quantitative ultrasound (QUS) is widely used to assess bone density as part of medical screening as it is relatively inexpensive and easy to perform. Current QUS devices do not share precise ultrasound-related parameters, such as frequency, waveform, beam pattern, transient response, definition of propagation time, definition of degree of attenuation, and precise measurement site, resulting in different measurements across models...
September 7, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28884241/torsed-appendix-epididymis-in-an-adult-misdiagnosis-as-tumor-of-tunica-vaginalis-on-sonography
#13
Dal Mo Yang, Hyun Cheol Kim, Sang Won Kim, Ji Su Kim, Kyu Yeoun Won
We report the sonographic findings in a case of torsed appendix epididymis that occurred in an adult, which was misdiagnosed as a tunica vaginalis tumor such as cystic mesothelioma. Scrotal gray-scale sonography revealed an ovoid-shaped, heterogeneously hypoechoic mass with multiple tiny cystic foci and thick septa in the sac of the right tunica vaginalis, which abuts to the right epididymal head. Color Doppler sonography showed no blood flow within the mass. Pathological examination revealed torsion of the appendix epididymis...
September 7, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28875315/carotid-artery-stiffness-evaluated-early-by-wave-intensity-in-normal-left-ventricular-function-in-post-radiotherapy-patients-with-nasopharyngeal-carcinoma
#14
Zhuo Zhang, Runlan Luo, Bijun Tan, Jing Qian, Yanfang Duan, Nan Wang, Guangsen Li
PURPOSE: This study aims to assess carotid elasticity early in normal left ventricular function in post-radiotherapy patients with nasopharyngeal carcinoma (NPC) by wave intensity. METHODS: Sixty-seven post-radiotherapy patients all with normal left ventricular function were classified into group NPC1 and group NPC2 based on their carotid intima-media thickness. Thirty age- and sex-matched NPC patients without any history of irradiation and chemotherapy were included as a control group...
September 5, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28840423/hdlive-flow-silhouette-mode-for-the-diagnosis-of-uterine-enhanced-myometrial-vascularity-arteriovenous-malformations
#15
Chiaki Tenkumo, Kenji Kanenishi, Mohamed Ahmed Mostafa AboEllail, Kenta Yamamoto, Megumi Ishibashi, Nobuhiro Mori, Hirokazu Tanaka, Toshiyuki Hata
We present our initial experience of using the HDlive Flow silhouette mode to construct images of two cases of uterine enhanced myometrial vascularity/arteriovenous malformations (EMV/AVMs). In the first case, the HDlive Flow silhouette mode clearly depicted a fused vascular tumor with irregular contour in the posterior myometrium. In the second case, a large hypervascular mass occupying the entire fundal lesion of the uterus was clearly identified using the HDlive Flow silhouette mode. Moreover, spatial relationships among the hypervascular mass, intrauterine blood collection, and dilated, spiral-shaped right uterine artery enabled the clear localization of the mass...
August 24, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28836088/feasibility-assessment-for-successfully-visualizing-the-fetal-heart-utilizing-spatiotemporal-image-correlation
#16
Eisuke Inubashiri, Sayuri Tatedo, Naomi Nishiyama, Hiina Minami, Yukio Watanabe, Noriyuki Akutagawa, Katumaru Kuroki, Masaki Sugawara, Nobuhiko Maeda, Keiji Haseyama
PURPOSE: Spatiotemporal image correlation (STIC) is an excellent imaging modality for observing the fetal heart. High-quality STIC volume data are needed for an antenatal anatomic survey to diagnose congenital heart disease. We aimed to clarify the causes of unsuccessful STIC volume data acquisition and describe a more accurate, efficient STIC examination. METHODS: This cross-sectional study of 1124 women with fetuses assessed risk factors for unsuccessful acquisition of STIC volume data...
August 23, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28836084/effect-of-ultrasonic-irradiation-on-bacterial-biofilms
#17
Harumi Koibuchi, Yasutomo Fujii, Yoshikazu Hirai, Takashi Mochizuki, Kohji Masuda, Kazuhiko Kotani, Toshiyuki Yamada, Nobuyuki Taniguchi
PURPOSE: The purpose of this study was to clarify the effect of ultrasonic irradiation on biofilm produced by Staphylococcus epidermidis (S. epidermidis), which causes central venous catheter-related infections. MATERIALS AND METHODS: Staphylococcus epidermidis (S. epidermidis, ATCC 35984 RP 62A) was used in this study. First, biofilm was prepared from S. epidermidis on the bottom of the upper left well of a 6-well plate. Next, the biofilm was irradiated for 24 h with 1-MHz ultrasound (US) in the continuous wave mode to serve as the US irradiation group...
August 23, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28828695/association-of-des-%C3%AE-carboxy-prothrombin-production-and-sonazoid-enhanced-ultrasound-findings-in-hepatocellular-carcinomas-of-different-histologic-grades
#18
Kazumoto Murata, Akiko Saito, Satoshi Katagiri, Shunichi Ariizumi, Masayuki Nakano, Masakazu Yamamoto
PURPOSE: We previously reported that hepatocellular carcinoma (HCC) changes to a phenotype producing des-γ-carboxy prothrombin (DCP) during epithelial mesenchymal transition (EMT) in vitro. To confirm this change in vivo, we evaluated the association between DCP production and HCC hemodynamics in patients undergoing resection as EMT and hemodynamic changes are closely associated with each other. METHODS: We evaluated HCC hemodynamics by employing Sonazoid-enhanced ultrasound (SEUS) before surgical resection, and sought associations with histological grade and immunohistochemical staining of DCP in 19 areas from 11 patients...
August 21, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28821993/segmentation-of-breast-ultrasound-images-based-on-active-contours-using-neutrosophic-theory
#19
Mahsa Lotfollahi, Masoumeh Gity, Jing Yong Ye, A Mahlooji Far
PURPOSE: Ultrasound imaging is an effective approach for diagnosing breast cancer, but it is highly operator-dependent. Recent advances in computer-aided diagnosis have suggested that it can assist physicians in diagnosis. Definition of the region of interest before computer analysis is still needed. Since manual outlining of the tumor contour is tedious and time-consuming for a physician, developing an automatic segmentation method is important for clinical application. METHODS: The present paper represents a novel method to segment breast ultrasound images...
August 18, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28819899/significance-of-intravascular-ultrasound-and-exercise-stress-echocardiography-in-diagnosis-of-exercise-induced-vasospastic-angina-at-the-site-of-moderate-stenosis
#20
Makio Muraishi, Kentaro Shibayama, Masahiko Noguchi, Hiroyuki Watanabe, Kotaro Obunai
Recently, exercise-induced spastic coronary artery occlusion at the site of moderate stenosis, which Prinzmetal's angina or cardiac syndrome X does not cover, was reported. Multi-modality imaging is important for the diagnosis of coronary artery disease with a complex ischemic mechanism. However, the previous report did not include findings from intracoronary imaging at the site of moderate coronary stenosis. We report a case of exercise-induced vasospastic angina at the site of moderate stenosis, where multi-modality imaging, including exercise stress echocardiography and intravascular ultrasound, was utilized to make a definitive diagnosis and investigate underlying causes...
August 17, 2017: Journal of Medical Ultrasonics
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