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Journal of Medical Ultrasonics

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https://www.readbyqxmd.com/read/27909829/contrast-enhanced-ultrasound-in-diagnosis-of-primary-hepatic-angiosarcoma
#1
Wenwu Ling, Tingting Qiu, Lin Ma, Chuanfen Lei, Yan Luo
Primary hepatic angiosarcoma (PHA) is a rare malignant tumor that occurs mainly in the elderly, with almost no specific symptoms or tumor markers. Information on the imaging characteristics of this tumor is limited due to its rarity. Therefore, it is difficult to diagnose PHA. So far, its definite diagnosis depends on histopathologic examination combined with immunohistochemical results. Patients with PHA have a poor prognosis in spite of surgical resection of this tumor. In this case report, we present a 72-year-old woman with PHA, focusing on the imaging features of this tumor, especially its enhancement pattern on contrast-enhanced ultrasound images...
December 1, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27858229/usefulness-of-three-dimensional-transesophageal-echocardiography-for-diagnosis-of-hemolytic-anemia-due-to-inverted-internal-felt-strip-after-surgery-for-aortic-dissection
#2
Takeshi Oda, Hiroshi Yasunaga, Yasuyuki Zaima, Akiko Arimura, Shinichi Imai, Ryo Kanamoto, Hayato Fukuda, Eiji Nakamura, Hideki Tashiro, Shigeaki Aoyagi
Felt strips are widely used for reinforcement of the aortic stump in surgery for aortic dissection (AD). Postoperative hemolytic anemia (HA) due to an inverted internal felt strip at the aortic stump fixation for AD is extremely rare. A 70-year-old woman underwent ascending aorta replacement for acute type A AD, where both proximal and distal anastomotic sites were reinforced with Teflon felt strips. A week later, macroscopic hematuria and HA emerged. Three-dimensional transesophageal echocardiography (3D-TEE) demonstrated that the proximal inner felt strip turned up and protruded into the aortic inner lumen...
November 17, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27858228/prenatal-diagnosis-of-abnormal-umbilical-cord-insertion-a-rare-case-of-furcate-insertion
#3
Yasuyuki Fujita, Yasuo Yumoto, Kiyoko Kato
Furcate insertion (FI) is an extremely rare abnormality of umbilical cord insertion. One of the complications associated with FI is hemorrhage from the umbilical vein at the site of FI of the umbilical cord, which can cause sudden intrauterine fetal death. Because of its rarity, no prenatal diagnosis of FI has been reported. A 31-year-old woman at 34 weeks' gestation was referred to us for suspected abnormal cord insertion. Ultrasonography showed normal fetal growth and amniotic fluid volume, with no fetal anomalies...
November 17, 2016: 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
#4
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...
November 11, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27832403/intrapartum-transperineal-ultrasound-for-evaluating-uterine-contraction-intensity-in-the-second-stage-of-labor
#5
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...
November 10, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27830422/isolated-breast-vasculitis-manifested-as-breast-edema-with-suggestive-sonographic-findings-a-case-report-with-imaging-findings
#6
Ji Young Lee, Mee Joo
Early diagnosis of breast vasculitis (BV) is difficult because this condition is rare and occasionally mimics breast cancer clinically or radiologically. It may present as systemic disease or as an isolated lesion in the breast, without systemic evidence. When vasculitis appears in the breast, it also might manifest as a tumor-like lesion, and in previous cases, tissue acquisition was needed for confirmation of the diagnosis because of BV's resemblance to inflammatory breast cancer. We report a case of isolated BV that was suspected of being inflammatory breast cancer clinically, but manifested as bilateral breast edema on mammography...
November 9, 2016: 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
#7
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...
November 2, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27796515/improving-beamforming-performance-by-phased-synthetic-aperture-imaging-in-medical-ultrasound
#8
Masume Sadeghi, Ali Mahloojifar
PURPOSE: Ultrasound image quality is related to the receive beamformer's ability. Delay and sum (DAS), a conventional beamformer, is combined with the coherence factor (CF) technique to suppress side lobe levels. The purpose of this study is to improve these beamformer's abilities. METHODS: It has been shown that extension of the receive aperture can improve the receive beamformer's ability in radar studies. This paper shows that the focusing quality of CF and CF+DAS in medical ultrasound can be increased by extension of the receive aperture's length in phased synthetic aperture (PSA) imaging...
October 28, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27787642/differential-diagnosis-of-idiopathic-granulomatous-mastitis-and-breast-cancer-using-acoustic-radiation-force-impulse-imaging
#9
Memik Teke, Fatma Teke, Bircan Alan, Ahmet Türkoğlu, Cihad Hamidi, Cemil Göya, Salih Hattapoğlu, Metehan Gumus
PURPOSE: Differentiation of idiopathic granulomatous mastitis (IGM) from carcinoma with routine imaging methods, such as ultrasonography (US) and mammography, is difficult. Therefore, we evaluated the value of a newly developed noninvasive technique called acoustic radiation force impulse imaging in differentiating IGM versus malignant lesions in the breast. METHODS: Four hundred and eighty-six patients, who were referred to us with a presumptive diagnosis of a mass, underwent Virtual Touch tissue imaging (VTI; Siemens) and Virtual Touch tissue quantification (VTQ; Siemens) after conventional gray-scale US...
October 27, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27785575/diagnosis-of-joubert-syndrome-via-ultrasonography
#10
Baris Buke, Emre Canverenler, Göksun İpek, Semiha Canverenler, Hatice Akkaya
Joubert syndrome (JS) and related disorders (JSRD) are a group of multiple congenital anomaly syndromes in which the diagnostic hallmark is the molar tooth sign (MTS), a complex midbrain malformation visible on brain imaging. Detection of the MTS should be followed by a diagnostic protocol to assess multi-organ involvement. The incidence of JSRD ranges between 1/80,000 and 1/100,000 live births, although these values may represent an underestimate. The neurological components of JSRD include hypotonia, ataxia, intellectual disability, abnormal eye movements, and neonatal breathing problems...
October 26, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27771842/central-vascular-structures-as-a-characteristic-finding-of-regenerative-nodules-using-hepatobiliary-phase-gadolinium-ethoxybenzyl-diethylenetriaminepentaacetic-acid-enhanced-mri-and-arterial-dominant-phase-contrast-enhanced-us
#11
Kazuya Sugimori, Kazushi Numata, Masahiro Okada, Hiromi Nihonmatsu, Shigeo Takebayashi, Shin Maeda, Masayuki Nakano, Katsuaki Tanaka
OBJECTIVE: We investigated the characteristic findings of regenerative nodules (RNs) for differentiating early hepatocellular carcinoma (HCC) from high-grade dysplastic nodules (HGDNs) using magnetic resonance imaging (MRI) with gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA; EOB-MRI) and contrast-enhanced ultrasonography (CEUS) in patients with chronic liver disease. SUBJECTS AND METHODS: Pathologically confirmed lesions (100 early HCCs, 7 HGDNs, and 20 RNs with a maximum diameter of more than 1 cm and mean maximal diameters of 15...
October 22, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27757555/analysis-of-fluctuation-for-pixel-pair-distance-in-co-occurrence-matrix-applied-to-ultrasonic-images-for-diagnosis-of-liver-fibrosis
#12
Hiroshi Isono, Shinnosuke Hirata, Tadashi Yamaguchi, Hiroyuki Hachiya
PURPOSE: Chronic liver disease requires careful follow-up during long-term treatment, and development of a quantitative diagnosis method for liver fibrosis based on an ultrasonic imaging system is highly desired. METHODS: Texture analysis using a co-occurrence matrix was applied to both clinical and simulated ultrasonic images of fibrotic livers. A sequence of matrices was generated for pixel-pair distance, r, and texture feature contrast was chosen to examine the response to r in combination with statistical analysis of echo amplitude distribution using a multi-Rayleigh model...
October 18, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27726039/a-case-in-which-contrast-enhanced-transoral-carotid-ultrasonography-was-useful-for-pre-and-post-procedural-evaluation-in-carotid-artery-stenting
#13
Yuta Hagiwara, Tomohide Yoshie, Takahiro Shimizu, Hana Ogura, Takayuki Fukano, Tatsuro Takada, Toshihiro Ueda, Yasuhiro Hasegawa
Contrast-enhanced transoral carotid ultrasonography (CETOCU) is a novel examination modality that is superior to other modalities in the cases of pseudo-occlusion with severe arteriosclerotic stenosis of the distal internal carotid artery (ICA), and is also useful for noninvasively evaluating changes over time in the vessel distal to the stent following carotid artery stenting (CAS). We report a case of a patient who we evaluated with CETOCU for a pseudo-occlusive ICA before and after CAS.
October 11, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27696013/ultrasound-findings-of-diffuse-metastasis-of-gastric-signet-ring-cell-carcinoma-to-the-thyroid-gland
#14
Koji Morita, Takahiko Sakamoto, Shuji Ota, Hideo Masugi, Ikumi Chikuta, Yamato Mashimo, Naoki Edo, Takuo Tokairin, Nobuhiko Seki, Toshio Ishikawa
It has been shown that metastases to the thyroid from extrathyroidal malignancies occur as solitary or multiple nodules, or may involve the whole thyroid gland diffusely. However, diffuse metastasis of gastric cancer to the thyroid is extremely rare. Here, we report a case of a 74-year-old woman with diffuse infiltration of gastric adenocarcinoma (signet-ring-cell carcinoma/poorly differentiated adenocarcinoma) cells in the thyroid. The pathological diagnosis was made based on upper gastrointestinal endoscopy with biopsy and fine-needle aspiration cytology of the thyroid...
October 1, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27687733/dominant-factor-analysis-of-b-flow-twinkling-sign-with-phantom-and-simulation-data
#15
Weijia Lu, Bruno Haider
BACKGROUND AND PURPOSE: The twinkling sign in B-flow imaging (BFI-TS) has been reported in the literature to increase both specificity and sensitivity compared to the traditional gray-scale imaging. Unfortunately, there has been no conclusive study on the mechanism of this effect. METHODS: In the study presented here, a comparative test on phantoms is introduced, where the variance of a phase estimator is used to quantify the motion amplitude. The statistical inference is employed later to find the dominate factor for the twinkling sign, which is proven by computer simulation...
September 29, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27682834/hemiatrophy-of-brain-antenatal-ultrasonography-and-mri-postnatal-mri-diagnosis-with-the-introduction-of-shifted-falx-sign
#16
Abhinav Aggarwal, Aakriti Kapoor Aggarwal, Aakaar Kapoor, Ravi Kapoor, Ashutosh Bansal
Dyke-Davidoff-Masson syndrome (DDMS) is an uncommon congenital/pediatric disorder diagnosed only with the help of imaging. Clinical features associated with it are hemiparesis, seizures, facial asymmetry, and mental retardation. We here present a case of DDMS diagnosed antenatally at 29 weeks gestational age during routine antenatal ultrasound examination. The patient was further evaluated and followed using both ultrasound and magnetic resonance imaging during antenatal and postnatal periods. The infant had unilateral hemiatrophy with the absence of anterior and middle cerebral arteries...
September 28, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27619811/the-role-of-endoscopic-ultrasound-in-the-diagnosis-of-gallbladder-diseases
#17
Tanyaporn Chantarojanasiri, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Pradermchai Kongkam, Hidemi Goto
Endoscopic ultrasound (EUS) has recently played an increasing role in the diagnosis of gallbladder diseases. This review aims to summarize the role of EUS in the diagnosis of gallbladder lesions. EUS provides high-resolution images that can improve the diagnosis of gallbladder polypoid lesions and microlithiasis, in addition to evaluating gallbladder thickness and staging of gallbladder carcinoma. Contrast-enhancing agents may be useful for the differential diagnosis of gallbladder lesions, but the evidence of their effectiveness is still limited and further studies are required in this area to establish its usefulness...
September 12, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27613429/congenital-renal-arteriovenous-fistula-during-the-first-trimester-diagnosed-with-ultrasonography
#18
Mengyun Yao, Qiuyan Zhang, Jing Wang, Feixiang Xiang, Cheng Yu, Qing Lv, Mingxing Xie, Yanrong Zhang
A case of congenital renal arteriovenous fistula (AVF) complicating pregnancy with gross hematuria was managed successfully by superselective embolization with metallic coils. The patient was in the first trimester of her pregnancy at 12 weeks of gestation. The AVF was detected by color Doppler sonography and confirmed by renal arteriography. Because of its easy accessibility and absence of irradiation, ultrasound is the first choice for pregnant patients. Color Doppler ultrasound is effective in diagnosing AVF, and it is also helpful in the long-term followup after treatment...
September 9, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27687836/acknowledgment-to-reviewers
#19
(no author information available yet)
No abstract text is available yet for this article.
October 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27687835/editor-s-note
#20
EDITORIAL
Hiroshi Kanai
No abstract text is available yet for this article.
October 2016: Journal of Medical Ultrasonics
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