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Journal of Medical Ultrasonics

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https://www.readbyqxmd.com/read/28646319/presence-of-enthesopathy-in-patients-with-primary-sjogren-s-syndrome-ultrasonographic-study-of-a-local-cohort
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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/28488223/ultrasonic-identification-of-pump-twin-by-dual-gate-doppler-in-a-monochorionic-triamniotic-triplet-twin-reversed-arterial-perfusion-sequence-before-preventative-radiofrequency-ablation-a-case-report
#7
Yuichiro Takahashi, Shigenori Iwagaki, Rika Chiaki, Kazuhiko Asai, Masako Matsui, Ichiro Kawabata
We performed a dual-gate Doppler examination for a twin reversed arterial perfusion (TRAP) sequence in a monochorionic-triamniotic triplet pregnancy at 16 weeks of gestation and were able to identify the pump twin by arterial pulse rate synchronicity. We performed radiofrequency ablation to coagulate blood flow in the acardius at 16 weeks of gestation without any postoperative complication. At 29 weeks of gestation, we performed a cesarean section due to preterm rupture of the membranes and the patient delivered 1167/1237-g female neonates and a macerated acardius...
May 9, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28484895/diagnosis-of-umbilical-cord-entanglement-in-a-monochorionic-diamniotic-twin-pregnancy-with-spontaneous-septostomy-of-the-dividing-membranes-using-dual-gate-doppler-imaging
#8
Ayumu Ito, Masahiko Nakata, Ayako Oji, Mayumi Takano, Nahomi Umemura, Sumito Nagasaki, Toshimitsu Maemura, Mineto Morita
Umbilical cord entanglement is the leading cause of fetal mortality in monoamniotic twin pregnancies and a pseudo monoamniotic environment. Published methods for detecting this complication include color Doppler and pulsed Doppler sonography; however, no method provides an absolute diagnosis. In this case, we report the diagnosis of umbilical cord entanglement using dual-gate Doppler imaging. A 35-year-old woman was referred to our hospital at 28 weeks of gestation for prenatal management because of diagnosis of a monochorionic diamniotic twin pregnancy with spontaneous septostomy of the dividing membranes...
May 8, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28451775/variations-of-placental-migration-in-patients-with-early-third-trimester-malposition
#9
Kazufumi Haino, Keisuke Ishii, Masako Kanda, Asako Kanai, Shusaku Hayashi, Nobuaki Mitsuda
AIM: This study aimed to investigate the impact of placental migration on the definitive prepartum diagnosis of patients with placenta previa (PP) and low-lying placenta (LLP) after late preterm. METHODS: This was a retrospective cohort study of singleton pregnancies with PP and LLP diagnosed at 30-33 weeks of gestation. We assessed the rate of changes in transvaginal ultrasonographic measurements of placental position during the period from 34 to 38 weeks of gestation...
April 27, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28444475/vertebral-abnormality-without-spine-curvature-deformity-on-prenatal-ultrasonography-sonographic-findings-and-postnatal-radiographic-correlations
#10
Mi Jin Song, Young-Hwa Kim
PURPOSE: To evaluate prenatal US features and postnatal radiographic findings of fetuses with a sonographically detected vertebral abnormality (VA) without spine-curvature deformity (SCD). METHODS: Twenty-six fetuses showing a VA without SCD on prenatal US at our ultrasound center for a 5-year period were retrospectively identified and evaluated for sonographic data and coexisting anomalies. Medical records and postnatal radiographs of all 16 live births were reviewed...
April 25, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28439673/duodenal-adenocarcinoma-successfully-diagnosed-with-transabdominal-ultrasonography
#11
Hirokazu Yamazaki, Takanori Sakaguchi, Hatsuko Nasu, Katsutoshi Miura, Yasushi Shibasaki, Hajime Yuasa
Adenocarcinoma arising from the duodenum is relatively rare. Diagnosis of this disease at an early stage is difficult because its symptoms are usually nonspecific. We herein present a case in which duodenal adenocarcinoma was successfully found by transabdominal ultrasonography. Under ultrasonography, the tumor was located in the proximal duodenum apart from the papilla of Vater, and the serosa was intact. Other diagnostic modalities showed no evidence of adjacent organ invasion or distant metastasis. Therefore, pancreatoduodenectomy was performed and the postoperative course was uneventful...
April 24, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28432447/twofold-minimum-variance-beamforming-for-enhanced-ultrasound-imaging
#12
Sayed Mahmoud Sakhaei, Seyede Elham Shamsian
PURPOSE: To calculate the optimal weights of a minimum variance (MV) beamformer, the covariance matrix of the received data should be estimated. In ultrasound imaging, it is done through spatial smoothing. However, this technique reduces the effective aperture and consequently limits the attainable resolution. To mitigate this effect, we propose a new configuration for applying an adaptive beamforming method. METHODS: The method is based on applying MV in a twofold configuration such that the outputs of the subarrays are combined through an adaptive MV-like beamformer, instead of simply summing them...
April 21, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28424923/shear-wave-velocity-of-the-healthy-thyroid-gland-in-children-with-acoustic-radiation-force-impulse-elastography
#13
Meltem Ceyhan Bilgici, Dilek Sağlam, Semra Delibalta, Serap Yücel, Leman Tomak, Muzaffer Elmalı
PURPOSE: Acoustic radiation force impulse imaging is a kind of shear wave elastography that can be used in children for differentiating thyroid pathologies. Possible changes in the healthy thyroid gland in children may create difficulties in the use of shear wave velocities (SWV) in thyroid pathologies. The aim of this study was to define the normal values of SWV for the healthy thyroid gland in children, elucidate the correlation of the SWV values with potential influencing factors, and evaluate intra-operator reproducibility of the SWV...
April 19, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28424922/assistive-technology-for-ultrasound-guided-central-venous-catheter-placement
#14
REVIEW
Mohammad Ikhsan, Kok Kiong Tan, Andi Sudjana Putra
This study evaluated the existing technology used to improve the safety and ease of ultrasound-guided central venous catheterization. Electronic database searches were conducted in Scopus, IEEE, Google Patents, and relevant conference databases (SPIE, MICCAI, and IEEE conferences) for related articles on assistive technology for ultrasound-guided central venous catheterization. A total of 89 articles were examined and pointed to several fields that are currently the focus of improvements to ultrasound-guided procedures...
April 19, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28382475/breast-adenoid-cystic-carcinoma-report-of-a-case-with-emphasis-on-routine-sonographic-findings-and-shear-wave-elastography
#15
Min Huang, Tian'an Jiang, Qiyu Zhao, Qihan You, Guo Tian, Baohua Wang
Adenoid cystic carcinoma (ACC) of the breast is a rare malignant tumor. Its sonographic characteristics have been described in some reports, but there are few such reports available that describe the sonoelastographic findings of this tumor and provide additional information about the nature of the lesion. In this case report, we describe the routine sonographic findings and shear wave elastography findings of a breast adenoid cystic carcinoma in a 53-year-old woman.
April 5, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28349289/a-new-world-for-locomotor-organs-brought-about-by-portable-echography
#16
EDITORIAL
Chisato Watanabe
No abstract text is available yet for this article.
April 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28084559/apodized-adaptive-beamformer
#17
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...
April 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27990593/is-the-unaffected-eye-really-unaffected-color-doppler-ultrasound-findings-in-unilaterally-active-central-serous-chorioretinopathy
#18
Iclal Erdem Toslak, Muhammet Kazim Erol, Devrim Toslak, Bulent Cekic, Mehtap Barc Ergun, Jennifer E Lim-Dunham
PURPOSE: To evaluate ocular hemodynamic changes using color Doppler ultrasonography imaging (CDI) with an emphasis on unaffected eyes of patients with central serous chorioretinopathy (CSC). METHODS: Twenty-seven patients with active CSC and 25 controls were analyzed using spectral domain-optical coherence tomography (SD-OCT) and CDI for choroidal imaging and evaluation of retrobulbar vessels, respectively. RESULTS: Resistive index (RI), pulsatility index (PI), and peak systolic velocity (PSV) of the ophthalmic artery (OA) and PSV, end-diastolic velocity (EDV), and mean velocity (Vmean) of the central retinal artery (CRA) in the patient group were less than those in the control group...
April 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27933439/measurement-of-carotid-pulse-wave-velocity-using-ultrafast-ultrasound-imaging-in-hypertensive-patients
#19
Xiaopeng Li, Jue Jiang, Hong Zhang, Hua Wang, Donggang Han, Qi Zhou, Ya Gao, Shanshan Yu, Yanhua Qi
PURPOSE: The study aimed to assess the utility of ultrafast ultrasound imaging for evaluation of carotid pulse wave velocity (PWV) in newly diagnosed hypertension patients. METHODS: This prospective non-randomized study enrolled 90 hypertensive patients in our hospital from September to December 2013 as a hypertension group. An age- and sex-matched cohort of 50 healthy adults in our hospital from September to December 2013 was also included in the study as a control group...
April 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27933438/acoustic-radiation-force-impulse-arfi-elastography-in-the-evaluation-of-renal-parenchymal-stiffness-in-patients-with-ureteropelvic-junction-obstruction
#20
Hatice Arioz Habibi, Rumeysa Yasemin Cicek, Sedat Giray Kandemirli, Emel Ure, Ayse Kalyoncu Ucar, Mine Aslan, Salim Caliskan, Ibrahim Adaletli
PURPOSE: To investigate the role of acoustic radiation force impulse (ARFI) elastography in the detection of renal parenchymal damage in kidneys with and without ureteropelvic junction obstruction (UPJO). METHODS: Twenty-five pediatric patients with a diagnosis of UPJO who underwent surgery and 15 pediatric patients with conservatively managed UPJO were prospectively evaluated with ARFI elastography. Sixteen healthy volunteers constituted the control group. Shear wave velocity (SWV) measurements in the upper, mid, and lower poles of the affected kidney were performed...
April 2017: Journal of Medical Ultrasonics
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