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Journal of Medical Ultrasonics

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https://www.readbyqxmd.com/read/28317072/sonographic-classification-of-testicular-tumors-by-tissue-harmonic-imaging-experience-of-58-cases
#1
Atsuo Kawamoto, Tadashi Hatano, Kazuhiro Saito, Rie Inoue, Toshitaka Nagao, Shigeru Sanada
PURPOSE: To evaluate the relationship between our proposed sonographic classification of testicular tumors by tissue harmonic imaging and histological type. METHODS: We retrospectively analyzed 58 testicular tumors and tumor-like lesions [seminomatous germ cell tumor (SGCT): 28; non-seminomatous germ cell tumor (NSGCT): 16; lymphoid and hematopoietic tumor (LHT): 7; Leydig cell tumor: 1; epidermal cyst: 2; and tumor of paratesticular structure (TPS): 4]. We divided a sonographic image into six types for morphological criteria and three types for color Doppler criteria...
March 20, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28315022/report-of-the-89th-annual-scientific-meeting-of-the-japan-society-of-ultrasonics-in-medicine-the-12th-congress-of-the-asian-federation-of-societies-for-ultrasound-in-medicine-and-biology-and-the-8th-asian-conference-on-ultrasound-contrast-imaging-ultrasonic
#2
https://www.readbyqxmd.com/read/28299487/comparison-of-carotid-artery-ultrasonography-findings-between-acute-coronary-syndrome-and-atherothrombotic-cerebral-infarction
#3
Shigeru Toyoda, Hidehiro Takekawa, Yohei Asakawa, Ayano Suzuki, Naoyuki Otani, Masashi Sakuma, Shichiro Abe, Koichi Hirata, Teruo Inoue
BACKGROUND AND PURPOSE: Although risk factors for acute coronary syndrome (ACS) and atherothrombotic cerebral infarction (ACI) are common, it is unknown if the risk factors for these two conditions are similar. The purpose of our study was to elucidate differences in carotid artery atherosclerotic features between ACS and ACI. METHODS: We measured carotid artery ultrasound-based atherosclerotic parameters in 61 ACS and 33 ACI patients. In the ACS patients, 31 had single-vessel coronary artery disease (SVD) and 30 had multivessel coronary artery disease (MVD)...
March 15, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28293747/usefulness-of-end-diastolic-ratio-in-carotid-ultrasonography-for-the-screening-of-dural-arteriovenous-fistula-a-case-series
#4
Toshiaki Goda, Junya Kobayashi, Nobuyuki Ohara, Takeshi Ikegami, Kotaro Watanabe, Daisuke Takahashi
We report three cases in which carotid ultrasonography was useful for the diagnosis of dural arteriovenous fistula (dAVF). In all cases, dAVFs were fed by branches of the external carotid artery (ECA) and had retrograde leptomeningeal venous drainage. Carotid ultrasonography revealed high end-diastolic ratio (ED ratio) of the common carotid artery (CCA) (1.49-2.16) and low resistance index (RI) of the ECA (0.59-0.66). They were normalized after endovascular treatment (ED ratio of CCA 1.02-1.06, RI of ECA 0...
March 14, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28271231/quantitative-assessment-of-muscle-stiffness-with-acoustic-radiation-force-impulse-elastography-after-botulinum-toxin-a-injection-in-children-with-cerebral-palsy
#5
Meltem Ceyhan Bilgici, Tumay Bekci, Yasemin Ulus, Ayhan Bilgici, Leman Tomak, Mustafa Bekir Selcuk
PURPOSE: Our objective in this study was to assess the changes in medial gastrocnemius muscle (GCM) stiffness after botulinum toxin A (BTA) injection in children with cerebral palsy (CP) by using acoustic radiation force impulse (ARFI) elastography and to research the usability of this technique in clinical practice. MATERIALS AND METHODS: Twenty-four spastic lower extremities of 12 children with CP were assessed. BTA injection treatment was applied to the medial GCM...
March 7, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28238178/verification-of-recall-criteria-for-masses-detected-on-ultrasound-breast-cancer-screening
#6
Kanako Ban, Hiroko Tsunoda, Sakiko Suzuki, Rie Takaki, Kyouko Sasaki, Minako Nakagawa
PURPOSE: Mammography is the only modality for breast cancer screening demonstrated to reduce the mortality rate. However, ultrasonographic screening is already being widely performed as opportunistic screening in Japan. The recall criteria for masses are very important as quality controls. The purpose of this study was to verify these criteria at multiple institutions. METHODS: Screening was performed by five institutions in various regions in Japan. The total number of cases screened at all five institutions was 10,519...
February 25, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28224306/localization-of-the-fetal-conus-medullaris-by-oblique-view-extended-imaging
#7
Shui-Hua Yang, Zuo-Jian Yang, Yuan-Yuan Li, Huan Huang, Xiao-Xian Tian
OBJECTIVE: To evaluate the accuracy of oblique view extended imaging (OVEI) in locating the position of the fetal conus medullaris. METHODS: One hundred and twenty-two normal fetuses and five counterparts with spinal bifida received prenatal ultrasound examination. The vertebral body at the terminal of the conus medullaris and the coronal section of over five vertebral bodies were reconstructed using OVEI. Development of the nervous system of normal fetuses was assessed at postnatal day 28...
February 21, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28224305/high-frequency-color-doppler-ultrasound-as-the-first-diagnostic-and-monitoring-choice-for-early-superficial-high-flow-vascular-malformations
#8
Lei Chang, Dongze Lv, Yunbo Jin, Wenxin Yu, Xi Yang, Gang Ma, Hui Chen, Xiaoxi Lin
Diagnosis and monitoring of early high-flow vascular malformations could be a meaningful pursuit. However, there has been no ideal method for their long-term monitoring and prognosis. We examined 21 early high-flow vascular malformations in this study and deemed that high-frequency color Doppler ultrasound could be regarded as the first diagnostic and monitoring choice for early high-flow vascular malformations at present.
February 21, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28224304/visualization-of-draining-vein-in-focal-nodular-hyperplasia-by-superb-microvascular-imaging-report-of-two-cases
#9
Hiroko Naganuma, Hideaki Ishida, Masahiro Ogawa, Katsunori Suzuki
Focal nodular hyperplasia (FNH) is the second most common benign tumor of the liver, and diagnosis and follow-up without invasive procedures are now highly recommended. FNH shows a characteristic vascular structure called "spoke-wheel appearance". However, this appearance relies on the mode of the feeding artery, and the mode of the draining vein has not been sufficiently studied until recently. Superb microvascular imaging (SMI) is a new Doppler technology designed to improve visualization of the blood flow, especially slow flow signals from fine vessels, using a new algorithm...
February 21, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28204977/increased-maximum-common-carotid-intima-media-thickness-is-associated-with-smoking-and-hypertension-in-tochigi-prefecture-residents
#10
Akio Iwasaki, Hidehiro Takekawa, Ryuta Okabe, Keisuke Suzuki, Madoka Okamura, Takahito Nishihira, Ayano Suzuki, Yuka Tsukahara, Koichi Hirata
OBJECTIVE: We investigated maximum intima-media thickness of the common carotid artery (IMT-Cmax) in residents of Tochigi Prefecture, who have been reported to have high stroke mortality. METHOD: Our study included 840 individuals. All participants underwent carotid ultrasonography and answered a questionnaire during participation in a health festival in Tochigi Prefecture. The questionnaire was designed to collect information on age, gender, and risk factors for stroke...
February 15, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28197744/efficiency-of-quantitative-echogenicity-for-investigating-supraspinatus-tendinopathy-by-the-gray-level-histogram-of-two-ultrasound-devices
#11
Jiun-Cheng Hsu, Po-Han Chen, Kuo-Chin Huang, Yao-Hung Tsai, Wei-Hsiu Hsu
PURPOSE: The gray-level histogram of ultrasound is a promising tool for scanning the hypoechogenic appearance of supraspinatus tendinopathy, and the aim of this study was to test the hypothesis that the gray-level value of the supraspinatus tendon in the painful shoulder has a lower value on B-mode images even though in different ultrasound devices. METHODS: Sixty-seven patients who had unilateral shoulder pain with rotator cuff tendinopathy underwent bilateral shoulder ultrasonography, and we compared the mean gray-level values of painful shoulders and contralateral shoulders without any pain in each patient using two ultrasound devices...
February 14, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28154989/can-strain-elastography-combined-with-ultrasound-breast-imaging-reporting-and-data-system-be-a-more-effective-method-in-the-differentiation-of-benign-and-malignant-breast-lesions
#12
Serdar Arslan, Nihal Uslu, Funda Ulu Ozturk, Eda Yilmaz Akcay, Tugan Tezcaner, Ahmet Muhtesem Agildere
PURPOSE: To investigate whether a novel method that combines breast imaging reporting and data system (BI-RADS) with strain elastography contributes to diagnostic performance in differentiation of malignant and benign breast lesions. METHODS: In 81 patients, 81 breast lesions were prospectively investigated. Breast lesions were separately evaluated with ultrasonography and strain elastography. While evaluations with ultrasonography were based on 2003 BI-RADS-US, strain elastography evaluations were based on a 5-point scale and strain ratio...
February 2, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28150225/altered-oscillation-of-doppler-derived-renal-and-renal-interlobar-venous-flow-velocities-in-hypertensive-and-diabetic-patients
#13
Yusuke Kudo, Taisei Mikami, Mutsumi Nishida, Kazunori Okada, Sanae Kaga, Nobuo Masauzi, Satomi Omotehara, Hitoshi Shibuya, Kaoru Kahata, Chikara Shimizu
BACKGROUND AND PURPOSE: Flow velocity oscillation rate (FVOR) of the renal interlobar vein has been reported to be decreased in patients with urinary obstruction or diabetic nephropathy, and increased in those with hypertension during pregnancy. To clarify the clinical role of the renal interlobar venous FVOR, we investigated the flow velocity patterns of the renal vessels in patients with hypertension (HT) and/or diabetes (DM). METHODS AND RESULTS: Pulsed-wave Doppler sonography was performed in 34 patients: 15 with HT, 10 with DM, and nine with both HT and DM (HT-DM)...
February 1, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28097609/a-case-of-a-quadricuspid-aortic-valve-identified-preoperatively-using-transthoracic-echocardiography
#14
Takanori Kono, Takeshi Oda, Keiichi Akaiwa, Katsuhiko Nakamura, Hiroyuki Tanaka
Quadricuspid aortic valve is an extremely rare congenital heart anomaly that often causes valve incompetence, requiring surgical intervention. Care must be taken to avoid surgical complications in patients with quadricuspid aortic valve; thus, preoperative diagnosis is important. A 76-year-old man presented with exertional dyspnea due to aortic regurgitation. Transthoracic and transesophageal echocardiography revealed severe aortic regurgitation caused by quadricuspid aortic valve. To avoid interference with the cardiac conduction system, we performed aortic valve replacement using an ingenious technique, in which pledgeted sutures on the accessory leaflet were placed from outside the sinus of Valsalva to above the aortic annulus...
January 18, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28084559/apodized-adaptive-beamformer
#15
Hideyuki Hasegawa
PURPOSE: A number of studies aimed at improvement of ultrasound image quality, such as spatial resolution and contrast, have been conducted. Apodization is known as an important factor that determines image quality. However, in the case of amplitude and phase estimation (APES) beamforming, a kind of adaptive beamformer that has been employed in medical ultrasound recently, only rectangular apodization has been used in the previous studies. In this study, apodization was employed in adaptive beamforming, and its effects on image quality were examined in phantom experiments...
January 13, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28039538/maternal-liver-elasticity-determined-by-acoustic-radiation-force-impulse-elastosonography-in-intrahepatic-cholestasis-of-pregnancy
#16
Orkun Cetin, Erbil Karaman, Harun Arslan, Ibrahim Akbudak, Recep Yildizhan, Ali Kolusari
PURPOSE: Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-specific liver disorder characterized by maternal pruritus and impaired liver function. The objective of the study was to evaluate maternal liver elasticity by acoustic radiation force impulse (ARFI) elastosonography in ICP and to compare it with that in healthy pregnant women. METHODS: This descriptive, case-control study consisted of 33 women with healthy pregnancies and 22 women with ICP in the third trimester of gestation...
December 30, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28070845/changes-in-the-roles-of-transrectal-ultrasonography-for-the-diagnosis-of-prostate-cancer
#17
EDITORIAL
Atsushi Ochiai
No abstract text is available yet for this article.
January 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27837395/evaluation-of-sorafenib-for-advanced-hepatocellular-carcinoma-with-low-%C3%AE-fetoprotein-in-arrival-time-parametric-imaging-using-contrast-enhanced-ultrasonography
#18
Kazue Shiozawa, Manabu Watanabe, Takashi Ikehara, Ryo Shimizu, Mie Shinohara, Yoshinori Igarashi, Yasukiyo Sumino
PURPOSE: To determine the usefulness of arrival time parametric imaging (AtPI) using contrast-enhanced ultrasonography (CEUS) with Sonazoid in evaluating early response to sorafenib for hepatocellular carcinoma (HCC). METHODS: Twenty-one advanced HCC patients with low α-fetoprotein (AFP) levels (≤35 ng/ml) who received sorafenib for at least 4 weeks were enrolled in this study. CEUS was performed before and 2 weeks after treatment, and the images of the target lesion in the arterial phase were analyzed by AtPI...
January 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27832403/intrapartum-transperineal-ultrasound-for-evaluating-uterine-contraction-intensity-in-the-second-stage-of-labor
#19
Miyuki Muramoto, Kiyotake Ichizuka, Junichi Hasegawa, Masamitsu Nakamura, Satoshi Dohi, Hiroshi Saito, Masaaki Nagatsuka
PURPOSE: To clarify whether intrapartum transperineal ultrasound (ITU) can be used to evaluate uterine contraction intensity, and whether the intensity is associated with the duration of the second stage. METHODS: A prospective observational study was performed involving 86 women with a normal singleton term fetus and more than three contractions every 10 min. ITU was performed for contractile and non-contractile periods of labor at the beginning of the second stage, and one representative "angle of progression (AoP)" image was selected for each period...
January 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27807689/real-time-three-dimensional-echocardiography-of-left-atrial-volume-and-function-in-patients-with-severe-multi-vessel-coronary-artery-disease
#20
Lingjie Yang, Li Ma, Yanhong Li, Yuming Mu, Liyun Liu
PURPOSE: To evaluate the changes in left atrial (LA) volume and function in patients with severe multi-vessel coronary artery disease (CAD) by real-time three-dimensional echocardiography (RT-3DE). METHODS: One hundred and eight subjects were stratified based on coronary angiography (CAG) imaging, comprising 48 patients with severe multi-vessel CAD, 31 patients with severe single-vessel CAD, and 29 controls. RT-3DE was performed in all groups. LA volume parameters were measured...
January 2017: Journal of Medical Ultrasonics
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