Optimal surface property for three-dimensional echo visualization
ConclusionsThese results suggest that echo dropout and grating lobes can be effectively eliminated by an appropriate surface profile; thus, a likely practical solution would be to manufacture a surface that provides an adequate reflective surface size at various incident angles. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - October 12, 2017 Category: Radiology Source Type: research

Inflammatory myofibroblastic tumors of the breast with simultaneous intracranial, lung, and pancreas involvement: ultrasonographic findings and a review of the literature
AbstractWe 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. Breast ultrasonography show...
Source: Journal of Medical Ultrasonics - October 12, 2017 Category: Radiology Source Type: research

Ultrasonography and return to play of the different clinical grading of quadriceps contusions: a case series
AbstractPrognostication 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. Clinical grading did not consistently estimate th...
Source: Journal of Medical Ultrasonics - October 7, 2017 Category: Radiology Source Type: research

Auto strain ratio system for the quality control of breast strain elastography
AbstractPurposeTo determine the reproducibility, accuracy, and quantitative values of the auto strain ratio system (ASRS) —a newly developed strain elastography-based program.Materials and methodsFirst, 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. T...
Source: Journal of Medical Ultrasonics - September 27, 2017 Category: Radiology Source Type: research

Future of vascular ultrasound
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - September 24, 2017 Category: Radiology Source Type: research

Editor ’s note
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - September 24, 2017 Category: Radiology Source Type: research

Acknowledgment to reviewers
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - September 24, 2017 Category: Radiology Source Type: research

Erratum to: Attempt at standardization of bone quantitative ultrasound in Japan
In the original version of the article, the third author name was incorrectly published. The correct name is Kosei Yoh. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - September 20, 2017 Category: Radiology Source Type: research

Early prenatal diagnosis of a lumbo-costo-vertebral syndrome
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. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - September 13, 2017 Category: Radiology Source Type: research

The value of quantitative shear wave elastography in differentiating the cervical lymph nodes in patients with thyroid nodules
ConclusionsSWE can differentiate metastasis from benign cervical lymph nodes in patients with thyroid nodules, and the maxSM, meanSM, and SD may be valuable quantitative indicators for characterizing cervical lymph nodes. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - September 13, 2017 Category: Radiology Source Type: research

Contrast-enhanced ultrasonography evaluation of hepatocellular carcinoma with peritumoral fat-spared area: a case report
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. Histological examination revealed that the hypoechoic area comprised a thin fibrous capsule and normal liver parenchyma without fat, which is PTFSA. Contrast-enhanced US (CEUS) indicated corona enhancement only at the inner part of the PTFSA. The inner part showed the same pattern as that of an ordinary halo and was a p...
Source: Journal of Medical Ultrasonics - September 12, 2017 Category: Radiology Source Type: research

Quantitative assessment of muscular stiffness in children with cerebral palsy using acoustic radiation force impulse (ARFI) ultrasound elastography
AbstractPurposeTo 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).MethodsSeventeen 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. The mean SWV value for each MAS score was calculated and used for statistics.Resul...
Source: Journal of Medical Ultrasonics - September 12, 2017 Category: Radiology Source Type: research

Preoperatively determining the margins of subcutaneous malignant soft tissue tumours using contrast-enhanced ultrasonography
AbstractThe 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. After surgery, the extent of the tumour area was d...
Source: Journal of Medical Ultrasonics - September 11, 2017 Category: Radiology Source Type: research

Torsed appendix epididymis in an adult: misdiagnosis as tumor of tunica vaginalis on sonography
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. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - September 7, 2017 Category: Radiology Source Type: research

Attempt at standardization of bone quantitative ultrasound in Japan
AbstractDual 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. The Japan Osteoporosis Society established a QUS Standardization Committee in 2007 to investigate stan...
Source: Journal of Medical Ultrasonics - September 7, 2017 Category: Radiology Source Type: research

Carotid artery stiffness evaluated early by wave intensity in normal left ventricular function in post-radiotherapy patients with nasopharyngeal carcinoma
This study aims to assess carotid elasticity early in normal left ventricular function in post-radiotherapy patients with nasopharyngeal carcinoma (NPC) by wave intensity.MethodsSixty-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. Carotid parameters, including stiffness constant (β), pressure –strain elastic modulus (Ep), arterial compliance (AC), stiffness constant p...
Source: Journal of Medical Ultrasonics - September 5, 2017 Category: Radiology Source Type: research

HDlive Flow silhouette mode for the diagnosis of uterine enhanced myometrial vascularity/arteriovenous malformations
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 a...
Source: Journal of Medical Ultrasonics - August 24, 2017 Category: Radiology Source Type: research

Feasibility assessment for successfully visualizing the fetal heart utilizing spatiotemporal image correlation
ConclusionsAvoiding SAU was the most important factor for accurate, efficient STIC evaluations for diagnosing congenital heart disease antenatally. The risk was not explained by lack of sonographer proficiency. Volume rendering images in 4D-US is a promising approach to successful acquisition of STIC volume data. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - August 23, 2017 Category: Radiology Source Type: research

Effect of ultrasonic irradiation on bacterial biofilms
AbstractPurposeThe purpose of this study was to clarify the effect of ultrasonic irradiation on biofilm produced byStaphylococcus epidermidis (S. epidermidis), which causes central venous catheter-related infections.Materials and methodsStaphylococcus epidermidis (S. epidermidis, ATCC 35984 RP 62A) was used in this study. First, biofilm was prepared fromS. 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. The acoustic power irradiated below the bottom of the well was...
Source: Journal of Medical Ultrasonics - August 23, 2017 Category: Radiology Source Type: research

Association of des- γ-carboxy prothrombin production and Sonazoid-enhanced ultrasound findings in hepatocellular carcinomas of different histologic grades
ConclusionOur preliminary findings suggest that HCC hemodynamics evaluated by SEUS are associated with histological grade and/or DCP production. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - August 21, 2017 Category: Radiology Source Type: research

Segmentation of breast ultrasound images based on active contours using neutrosophic theory
ConclusionThe purposed method indicates clear advantages over other conventional methods of active contour segmentation, i.e., region-scalable fitting energy and weighted region-scalable fitting energy. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - August 18, 2017 Category: Radiology Source Type: research

Significance of intravascular ultrasound and exercise stress echocardiography in diagnosis of exercise-induced vasospastic angina at the site of moderate 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. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - August 17, 2017 Category: Radiology Source Type: research

Two patterns of contrast-enhanced ultrasonography with Sonazoid ® in spontaneous rupture of hepatocellular carcinoma: a report of four cases
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®. Two patterns of bleeding were observed with CEUS: jet-like extravasation (n = 2) and bubble leakage (n = 2). While contrast-enhanced computed tomography and angiography revealed active bleeding in only one patient, CEUS detected active bleeding and enabled the bleeding site to be estimated in all patients. Transcatheter arterial embolization was performed based on the f...
Source: Journal of Medical Ultrasonics - August 16, 2017 Category: Radiology Source Type: research

Three-dimensional HDlive imaging of an umbilical cord cyst
In this report, we demonstrate the novel visual depiction of UCC in utero with three-dimensional HDlive imaging, which helps substantially with prenatal diagnosis. A case with an abnormal placental mass at 16  weeks and 5 days of gestation was observed in detail using HDlive. HDlive revealed very realistic images of the intrauterine abnormality: the oval lesion was smooth with regular contours and a homogenous wall at the site of cord insertion on the placenta. In addition, we confirmed the absent of u mbilical cord, placental, and fetal structural anomalies. Here, we report a case wherein HDlive may have provide...
Source: Journal of Medical Ultrasonics - August 10, 2017 Category: Radiology Source Type: research

Erratum to: Vertebral abnormality without spine-curvature deformity on prenatal ultrasonography: sonographic findings and postnatal radiographic correlations
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - August 7, 2017 Category: Radiology Source Type: research

A case of Kawasaki disease presenting as sigmoid colitis
AbstractInitial 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. Microscopic examination of a biopsy specimen revealed non-specific colitis with infl...
Source: Journal of Medical Ultrasonics - July 27, 2017 Category: Radiology Source Type: research

Prenatal diagnosis of pulmonary atresia with ventricular septal defect
AbstractPulmonary 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. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - July 27, 2017 Category: Radiology Source Type: research

Prenatal diagnosis of premature constriction of the ductus arteriosus with tricuspid papillary muscle rupture: a case report
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 oxid e were administered immediately at birth for pulmonary hypertension, and this therapy was continued until the seventh postnatal day. Emergency tricuspid valve repair was unnecessary, because there were no signs of severe circulatory in...
Source: Journal of Medical Ultrasonics - July 19, 2017 Category: Radiology Source Type: research

Certolizumab pegol was effective for treating residual synovitis after total knee arthroplasty in a patient with rheumatoid arthritis: therapeutic monitoring by ultrasound
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. Ultrasound showed synovial hypertrophy with va...
Source: Journal of Medical Ultrasonics - July 19, 2017 Category: Radiology Source Type: research

Apoptotic and genotoxic effects of low-intensity ultrasound on healthy and leukemic human peripheral mononuclear blood cells
ConclusionsThe study demonstrated that low-intensity ultrasound selectively induced apoptosis in cancer PMBCs. Ultrasound-induced DNA damage was observed primarily in leukemic PMBCs. Nevertheless, both cell lines were able to repair ultrasound-mediated DNA strand breaks. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - July 8, 2017 Category: Radiology Source Type: research

Shear wave velocity measurement of upper trapezius muscle by color Doppler shear wave imaging
ConclusionsThis result suggests that our technique is satisfactorily reliable and has potential for future application in various fields, such as evaluation of muscle condition or the effects of rehabilitation. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - June 28, 2017 Category: Radiology Source Type: research

The latest technology of musculoskeletal ultrasonography: iterative revolution
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - June 27, 2017 Category: Radiology Source Type: research

Real-time ultrasound elastography of the Achilles tendon in patients with cerebral palsy: is there a correlation between strain ratio and biomechanical indicators?
AbstractPurposeOur 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.MethodsA 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. Correlation analysis between age, length, and thickness of the Achilles tendon, and strain ratio (SR) was performed by means of Pears...
Source: Journal of Medical Ultrasonics - June 27, 2017 Category: Radiology Source Type: research

Significance of perithyroidal lymph nodes in benign thyroid diseases
AbstractPurposeThe incidences of perithyroidal lymph nodes (PTLNs) in benign thyroid diseases were investigated.MethodsA 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 hor mone receptor, anti-thyroglobulin, and anti-thyroid peroxidase antibodies (TRAb, TgAb, and TPOAb).ResultsThe P...
Source: Journal of Medical Ultrasonics - June 27, 2017 Category: Radiology Source Type: research

Presence of enthesopathy in patients with primary Sjogren ’s syndrome: ultrasonographic study of a local cohort
ConclusionIn this study, it was shown that the MASEI scores assessed by US were significantly higher in patients with PSS than in healthy controls. Plantar fascia, Achilles tendon, and distal patellar tendon were significantly thicker in the PSS group than in the healthy controls. This result suggests that PSS may be one of the causes of musculoskeletal pain that can be seen in patients with PSS. Our study was the first study to use an enthesis index ultrasonographically in patients with PSS. In addition, it is the first study to investigate the relationship between the presence of enthesopathy and disease activity by mean...
Source: Journal of Medical Ultrasonics - June 23, 2017 Category: Radiology Source Type: research

Inflammatory myofibroblastic tumor of the gallbladder: a case report and literature review
AbstractA 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 tom ography, 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. Gallbladder b...
Source: Journal of Medical Ultrasonics - June 21, 2017 Category: Radiology Source Type: research

Differential diagnosis between benign and malignant soft tissue tumors utilizing ultrasound parameters
ConclusionUltrasound is a useful modality for establishing the differential diagnosis between benign and malignant soft tissue tumors. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - June 20, 2017 Category: Radiology Source Type: research

Plicae palmatae in neonates: tumor mimic on sonography
AbstractPlicae 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. MRI was subsequently performed, and no restricted diffusion was found, which...
Source: Journal of Medical Ultrasonics - June 10, 2017 Category: Radiology Source Type: research

The utility of superb microvascular imaging for monitoring low-velocity venous flow following pancreas transplantation: report of a case
AbstractVascular 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. Herein, the authors describe the utility of SMI for monitoring splenic ven...
Source: Journal of Medical Ultrasonics - June 8, 2017 Category: Radiology Source Type: research

Is color Doppler a reliable method for the diagnosis of malrotation?
ConclusionCurrent data in the literature and our results underline that UGCS may yield false-positive and false-negative results. Although CDUS was found to be a reliable method for the diagnosis of malrotation in our study, the limitations of UGCS are also recognized for CDUS. Prospective studies are needed to determine the more valuable method. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - May 25, 2017 Category: Radiology Source Type: research

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
AbstractWe 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. Examination of the placenta reveal...
Source: Journal of Medical Ultrasonics - May 9, 2017 Category: Radiology Source Type: research

Diagnosis of umbilical cord entanglement in a monochorionic diamniotic twin pregnancy with spontaneous septostomy of the dividing membranes using dual-gate Doppler imaging
AbstractUmbilical 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. E...
Source: Journal of Medical Ultrasonics - May 8, 2017 Category: Radiology Source Type: research

Variations of placental migration in patients with early third trimester malposition
ConclusionsRepeated evaluations of placental position by ultrasonography after late preterm could be of significant value in selecting the most appropriate mode of delivery. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - April 27, 2017 Category: Radiology Source Type: research

Vertebral abnormality without spine-curvature deformity on prenatal ultrasonography: sonographic findings and postnatal radiographic correlations
ConclusionsMost fetuses with prenatally detected VA without SCD had hypoplastic vertebrae on postnatal radiographs. Prenatal recognition of VA without SCD can lead to an early postnatal diagnosis of a vertebral abnormality and guidance for follow-up. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - April 25, 2017 Category: Radiology Source Type: research

Duodenal adenocarcinoma successfully diagnosed with transabdominal ultrasonography
AbstractAdenocarcinoma 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. The ultrasonographic fi...
Source: Journal of Medical Ultrasonics - April 24, 2017 Category: Radiology Source Type: research

Twofold minimum variance beamforming for enhanced ultrasound imaging
ConclusionThe method yields significant improvement in the resolving capability and the contrast compared with the conventional MV. At the presence of the steering vector errors, these superiorities were achieved at a cost of slightly more errors in estimating the reflectivity coefficients. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - April 21, 2017 Category: Radiology Source Type: research

Assistive technology for ultrasound-guided central venous catheter placement
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. These include improving needle visualization, needle guides and localization technology, image processin...
Source: Journal of Medical Ultrasonics - April 19, 2017 Category: Radiology Source Type: research

Shear wave velocity of the healthy thyroid gland in children with acoustic radiation force impulse elastography
AbstractPurposeAcoustic 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.MethodsBetween January 2015 and December 2015, a total of 145 healthy children (...
Source: Journal of Medical Ultrasonics - April 19, 2017 Category: Radiology Source Type: research

Breast adenoid cystic carcinoma: report of a case with emphasis on routine sonographic findings and shear wave elastography
AbstractAdenoid 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. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - April 5, 2017 Category: Radiology Source Type: research

A new world for locomotor organs brought about by portable echography
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - March 28, 2017 Category: Radiology Source Type: research