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Journal of Medical Ultrasonics

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https://www.readbyqxmd.com/read/28821993/segmentation-of-breast-ultrasound-images-based-on-active-contours-using-neutrosophic-theory
#1
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
#2
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
https://www.readbyqxmd.com/read/28815352/two-patterns-of-contrast-enhanced-ultrasonography-with-sonazoid-%C3%A2-in-spontaneous-rupture-of-hepatocellular-carcinoma-a-report-of-four-cases
#3
Takaaki Sugihara, Masahiko Koda, Toshiaki Okamoto, Kenichi Miyoshi, Tomomitsu Matono, Hajime Isomoto
Spontaneous rupture is a life-threatening complication of hepatocellular carcinoma (HCC). Detecting active bleeding is critical. Color Doppler and contrast-enhanced ultrasonography (CEUS) with Levovist(®) are reported to be useful for detecting active bleeding. A few reports have described using Sonazoid(®) to detect bleeding in ruptured HCC. This report describes two distinctive patterns of bleeding from ruptured HCC observed in CEUS with Sonazoid(®). Four patients with suspected HCC rupture were examined by gray-scale ultrasonography (US) and then CEUS with Sonazoid(®)...
August 16, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28799037/three-dimensional-hdlive-imaging-of-an-umbilical-cord-cyst
#4
Eisuke Inubashiri, Naomi Nishiyama, Sayuri Tatedo, Hiina Minami, Atushi Saitou, Yukio Watanabe, Masaki Sugawara
Umbilical cord cysts (UCC) are a rare congenital malformation. Previous reports have suggested that the second- and third-trimester UCC may be associated with other structural anomalies or chromosomal abnormalities. Therefore, high-quality imaging is clinically important for the antenatal diagnosis of UCC and to conduct a precise anatomical survey of intrauterine abnormalities. There have been few reports of antenatal diagnosis of UCC with the conventional two- and three-dimensional ultrasonography. In this report, we demonstrate the novel visual depiction of UCC in utero with three-dimensional HDlive imaging, which helps substantially with prenatal diagnosis...
August 10, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28785896/erratum-to-vertebral-abnormality-without-spine-curvature-deformity-on-prenatal-ultrasonography-sonographic-findings-and-postnatal-radiographic-correlations
#5
Mi Jin Song, Young-Hwa Kim
No abstract text is available yet for this article.
August 7, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28752252/prenatal-diagnosis-of-pulmonary-atresia-with-ventricular-septal-defect
#6
Shui-Hua Yang, Peng-Hui Luo, Xiao-Xian Tian, Xin-Yan Li, Xue-Qin Li, Zuo-Jian Yang, Sheng-Li Li
Pulmonary atresia with ventricular septal defect (PA-VSD) is a rare complex congenital heart defect. Major artery-pulmonary collateral arteries (MAPCAs) are characteristic of PA-VSD. Prenatal diagnosis can be achieved in most cases of PA-VSD with recent advances in echocardiography. However, it is extremely rare that all MAPCAs can be observed on the echocardiograph. Here, we report a case of prenatally diagnosed type C PA-VSD in which all the MAPCAs could be seen on the echocardiograph, with the diagnosis supported by autopsy evidence...
July 27, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28752251/a-case-of-kawasaki-disease-presenting-as-sigmoid-colitis
#7
Yasuhiro Ohnishi, Kazuhiro Mori, Miki Inoue, Nobuo Satake, Mitsuyasu Yano
Initial gastrointestinal symptoms might confuse the clinical pictures of some patients with Kawasaki disease (KD) and delay diagnosis and treatment, especially when the patient does not fulfill sufficient diagnostic criteria for KD. Here, we present the case of a 4-year-old boy with KD who complained of severe left abdominal pain and fever alone for the first 6 days. Abdominal ultrasonography showed severe wall thickening localized to the sigmoid colon, and these findings were confirmed by computed tomography and colonoscopy...
July 27, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28725981/certolizumab-pegol-was-effective-for-treating-residual-synovitis-after-total-knee-arthroplasty-in-a-patient-with-rheumatoid-arthritis-therapeutic-monitoring-by-ultrasound
#8
Shin-Ya Kawashiri, Tohru Michitsuji, Atsushi Kawakami
We present the case of a 59-year-old female who developed rheumatoid arthritis in 2007. Right total knee arthroplasty (TKA) was performed in 2008. Although she was treated with methotrexate (MTX) after the operation, this treatment was insufficient. Infliximab (IFX) was introduced in 2001, and she achieved clinical remission. Left TKA was performed in October 2014. Because active synovitis was not detected by ultrasound after the operation, IFX was discontinued. She had been treated with MTX 8 mg weekly. However, arthralgia of the bilateral knees developed in March 2015...
July 19, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28725980/prenatal-diagnosis-of-premature-constriction-of-the-ductus-arteriosus-with-tricuspid-papillary-muscle-rupture-a-case-report
#9
Ayako Inatomi, Jun Sasahara, Keisuke Ishii, Mistuda Nobuaki
We describe the case of a neonate who was prenatally diagnosed at a gestational age of 36 weeks with premature constriction of the ductus arteriosus. Blood from the thin ductus arteriosus flowed toward the pulmonary artery. Severe tricuspid regurgitation was also observed. We subsequently confirmed rupture of the tricuspid papillary muscle after birth. Cardiotonic drugs and nitric oxide were administered immediately at birth for pulmonary hypertension, and this therapy was continued until the seventh postnatal day...
July 19, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28689300/apoptotic-and-genotoxic-effects-of-low-intensity-ultrasound-on-healthy-and-leukemic-human-peripheral-mononuclear-blood-cells
#10
Timur Saliev, Dinara Begimbetova, Dinara Baiskhanova, Danysh Abetov, Ulykbek Kairov, Charles P Gilman, Bakhyt Matkarimov, Katsuro Tachibana
PURPOSE: To scrutinize the apoptotic and genotoxic effects of low-intensity ultrasound and an ultrasound contrast agent (SonoVue; Bracco Diagnostics Inc., EU) on human peripheral mononuclear blood cells (PMBCs). METHODS: PMBCs were subjected to a low-intensity ultrasound field (1-MHz frequency; spatial peak temporal average intensity 0.18 W/cm2) followed by analysis for apoptosis and DNA damage (single-strand breaks + double-strand breaks). The comet assay was then repeated after 2 h to examine the ability of cells to repair DNA breaks...
July 8, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28660306/shear-wave-velocity-measurement-of-upper-trapezius-muscle-by-color-doppler-shear-wave-imaging
#11
Atsushi Yamamoto, Yoshiki Yamakoshi, Takashi Ohsawa, Hitoshi Shitara, Tsuyoshi Ichinose, Hiroyuki Shiozawa, Tsuyoshi Sasaki, Noritaka Hamano, Yasushi Yuminaka, Kenji Takagishi
PURPOSE: Skeletal muscle stiffness is thought to be the result of increased tissue hardness, but measurement accuracy has been dependent on operator technique. We have proposed a novel shear wave real-time imaging method (color Doppler shear wave imaging: CD SWI) with continuous shear waves excited from the tissue surface by a mechanical vibrator. METHODS: Using the method, shear wave velocity was measured for the upper trapezius muscle. Adaptive shear wave velocity measurement by means of quality estimation of shear wave wavefront was adopted...
June 28, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28656513/real-time-ultrasound-elastography-of-the-achilles-tendon-in-patients-with-cerebral-palsy-is-there-a-correlation-between-strain-ratio-and-biomechanical-indicators
#12
Mehmet Öztürk, Bahattin Sayinbatur
PURPOSE: Our aim was to comparatively investigate the strain ratio and thickness of the Achilles tendon in children with cerebral palsy (CP), and to elucidate whether there is a correlation between biomechanical features of the Achilles tendon and strain ratio. METHODS: A total of 155 participants (72 CP patients and 83 healthy controls) who underwent real-time elastography of both Achilles tendons were studied. A linear transducer (4.8-11.0 MHz) was used to obtain the images...
June 27, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28656512/significance-of-perithyroidal-lymph-nodes-in-benign-thyroid-diseases
#13
Tomoyuki Ohta, Makiko Nishioka, Norio Nakata, Kunihiko Fukuda, Takako Shirakawa
PURPOSE: The incidences of perithyroidal lymph nodes (PTLNs) in benign thyroid diseases were investigated. METHODS: A total of 108 patients were divided into 36 with benign thyroid nodules, 33 with Hashimoto's thyroiditis, 14 with Graves' disease, 10 with hypothyroidism of undetermined etiology, nine with silent thyroiditis, and six with subacute thyroiditis. We assessed the relationships among PTLNs and these groups, thyroid volume, thyroid parenchyma echogenicity, and anti-thyroid-stimulating hormone receptor, anti-thyroglobulin, and anti-thyroid peroxidase antibodies (TRAb, TgAb, and TPOAb)...
June 27, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28646319/presence-of-enthesopathy-in-patients-with-primary-sjogren-s-syndrome-ultrasonographic-study-of-a-local-cohort
#14
Sinem Sag, Mustafa Serdar Sag, Ibrahim Tekeoglu, Ayhan Kamanlı, Kemal Nas
BACKGROUND: Musculoskeletal findings in Sjögren's syndrome are arthralgia, arthritis, myalgia, myositis, fibromyalgia, and chronic fatigue. Enthesis zones are important in the formation of pain in the musculoskeletal system. Musculoskeletal ultrasound (US) may show subclinical enthesitis in the synovial joints and in the axial skeleton before joint swelling in inflammatory diseases characterized by arthritis. OBJECTIVE: In this study, we aimed to determine the presence of enthesopathy using the Madrid sonographic enthesitis index (MASEI) in patients with primary Sjögren's syndrome (PSS)...
June 23, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28639154/inflammatory-myofibroblastic-tumor-of-the-gallbladder-a-case-report-and-literature-review
#15
Takahiro Yamada, Takeshi Hisa, Satoshi Shiozawa, Akiharu Kudo, Ryutaro Furukawa
A 50-year-old man had undergone chemotherapy and radiotherapy for malignant lymphoma 1 year earlier. Follow-up computed tomography revealed a gallbladder polyp. Transabdominal ultrasound demonstrated a 20-mm hypoechoic sessile polyp with basal waist in the gallbladder fundus; the surface was covered with a hyperechoic layer of non-uniform thickness. On contrast-enhanced computed tomography, the polyp showed an early uniform and sustained staining pattern. Magnetic resonance imaging revealed that the polyp had low and slightly high signal intensities on T1- and T2-weighted imaging, respectively...
June 21, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28634807/differential-diagnosis-between-benign-and-malignant-soft-tissue-tumors-utilizing-ultrasound-parameters
#16
Takeshi Morii, Tomonori Kishino, Naoko Shimamori, Mitsue Motohashi, Hiroaki Ohnishi, Keita Honya, Takayuki Aoyagi, Takashi Tajima, Shoichi Ichimura
PURPOSE: Preoperative discrimination between benign and malignant soft tissue tumors is critical for the prevention of excess application of magnetic resonance imaging and biopsy as well as unplanned resection. Although ultrasound, including power Doppler imaging, is an easy, noninvasive, and cost-effective modality for screening soft tissue tumors, few studies have investigated reliable discrimination between benign and malignant soft tissue tumors. METHODS: To establish a modality for discrimination between benign and malignant soft tissue tumors using ultrasound, we extracted the significant risk factors for malignancy based on ultrasound information from 40 malignant and 56 benign pathologically diagnosed soft tissue tumors and established a scoring system based on these risk factors...
June 20, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28601980/plicae-palmatae-in-neonates-tumor-mimic-on-sonography
#17
Masahiro Kitami
Plicae palmatae are uterine cervical folds that can be misdiagnosed as a uterine septum on magnetic resonance imaging (MRI). Previous studies in the literature generally tend to include only adults and are limited to MRI findings. Here, we present the case of a 6-day-old girl with a tumorous lesion in her uterine isthmus on sonography. Although we considered uterine tumor as a differential diagnosis, the smooth surface and continuity with a cervical fold on the caudal side suggested that the lesion was, in fact, the tip of plicae palmatae...
June 10, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28597330/the-utility-of-superb-microvascular-imaging-for-monitoring-low-velocity-venous-flow-following-pancreas-transplantation-report-of-a-case
#18
Kazuaki Tokodai, Shigehito Miyagi, Chikashi Nakanishi, Yasuyuki Hara, Wataru Nakanishi, Koji Miyazawa, Kenji Shimizu, Masafumi Goto, Takashi Kamei, Michiaki Unno
Vascular thrombosis is a major complication after pancreas transplantation. Because delays in detecting thrombosis often result in graft failure, monitoring blood flow is crucial. Periodic evaluation using color Doppler ultrasonography is mostly performed for monitoring blood flow in the grafted pancreas. However, conventional color Doppler imaging has limited capability to visualize low-velocity blood flow. Superb microvascular imaging (SMI) is a novel ultrasound Doppler technique that is especially sensitive in detecting low-velocity flow...
June 8, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28547388/is-color-doppler-a-reliable-method-for-the-diagnosis-of-malrotation
#19
İbrahim Karaman, Ayşe Karaman, Hasibe Gökçe Çınar, Ahmet Ertürk, Derya Erdoğan, İsmet Faruk Özgüner
PURPOSE: The gold standard for the diagnosis of malrotation is barium contrast study of the upper gastrointestinal system (UGCS), while color Doppler ultrasonography (CDUS) is another method used in the diagnosis. We investigated the value of CDUS for the diagnosis of malrotation in this study. METHODS: UGCS images, CDUS images, plain abdominal images, demographic data, and symptoms of 82 patients who were investigated for presumed malrotation during a 7-year period were evaluated, retrospectively...
May 25, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28653229/the-latest-technology-of-musculoskeletal-ultrasonography-iterative-revolution
#20
EDITORIAL
Masashi Matsuzaki
No abstract text is available yet for this article.
July 2017: Journal of Medical Ultrasonics
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