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

A case of successful transluminal drainage of walled-off necrosis under contrast-enhanced harmonic endoscopic ultrasonography guidance
We report a case of successful transluminal drainage of walled-off necrosis (WON) under contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) guidance. Recently, EUS-guided transluminal drainage (EUS-TD) of WON has been increasingly used as a minimally invasive treatment option with reportedly high technical and clinical success rates; however, B-mode EUS occasionally fails to depict the target lesion and its margins, particularly in cases where the target shows a heterogeneous echogenicity. In our case, EUS-TD was attempted for infected WON, but visualization using B-mode EUS imaging was poor. Thus, CH-EUS was pe...
Source: Journal of Medical Ultrasonics - March 28, 2017 Category: Radiology Source Type: research

Sonographic classification of testicular tumors by tissue harmonic imaging: experience of 58 cases
ConclusionWe established a sonographic classification of testicular tumors with various histological types. This sonographic classification is potentially useful for estimating the histological type of testicular tumors. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - March 20, 2017 Category: Radiology Source Type: research

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 Week 2016)
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - March 17, 2017 Category: Radiology Source Type: research

Comparison of carotid artery ultrasonography findings between acute coronary syndrome and atherothrombotic cerebral infarction
AbstractBackground and purposeAlthough 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.MethodsWe 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).ResultsThe maximum intima –media thickness (IMT) of the ...
Source: Journal of Medical Ultrasonics - March 15, 2017 Category: Radiology Source Type: research

Usefulness of end-diastolic ratio in carotid ultrasonography for the screening of dural arteriovenous fistula: a case series
In conclusion, high ED ratio of the CCA and low RI of the ECA might be a useful indicator for both screening and follow-up of dAVF. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - March 14, 2017 Category: Radiology Source Type: research

Quantitative assessment of muscle stiffness with acoustic radiation force impulse elastography after botulinum toxin A injection in children with cerebral palsy
AbstractPurposeOur 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 methodsTwenty-four spastic lower extremities of 12 children with CP were assessed. BTA injection treatment was applied to the medial GCM. Muscle stiffness was measured with the ARFI technique before the procedure and a month after the procedure. The patients were assessed with the modified A...
Source: Journal of Medical Ultrasonics - March 7, 2017 Category: Radiology Source Type: research

Verification of recall criteria for masses detected on ultrasound breast cancer screening
ConclusionAlthough some parts of the criteria should be considered further for verification and revision, the current recall criteria are mostly valid. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 25, 2017 Category: Radiology Source Type: research

Visualization of draining vein in focal nodular hyperplasia by superb microvascular imaging: report of two cases
In conclusion, we have reported two cases of hepatic FNH in which SMI revealed clearly not only its feeding vessels and intratumoral vasculature but also its draining vessels communicating with the hepatic vein. SMI is consi dered to increase our diagnostic confidence by revealing fine vessels within and around the FNH lesion. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 21, 2017 Category: Radiology Source Type: research

High-frequency color Doppler ultrasound as the first diagnostic and monitoring choice for early superficial high-flow vascular malformations
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. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 21, 2017 Category: Radiology Source Type: research

Localization of the fetal conus medullaris by oblique view extended imaging
ConclusionsOVEI can display the 12th rib, T12, and conus medullaris simultaneously. OVEI is applicable to precisely locate the position of the conus medullaris and useful for prenatal evaluation of spinal bifida. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 21, 2017 Category: Radiology Source Type: research

Increased maximum common carotid intima-media thickness is associated with smoking and hypertension in Tochigi Prefecture residents
AbstractObjectiveWe 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.MethodOur 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. IMT-Cmax was measured. Statistical analyses were performed to identify factors contributing to IMT-Cmax values ≥1.1 mm.ResultsIn total, 117 sub...
Source: Journal of Medical Ultrasonics - February 15, 2017 Category: Radiology Source Type: research

Efficiency of quantitative echogenicity for investigating supraspinatus tendinopathy by the gray-level histogram of two ultrasound devices
AbstractPurposeThe 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.MethodsSixty-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 ...
Source: Journal of Medical Ultrasonics - February 14, 2017 Category: Radiology Source Type: research

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?
ConclusionsThe combination of strain elastography and BI-RADS was found to have better diagnostic performances to diagnose breast lesions than BI-RADS alone. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 2, 2017 Category: Radiology Source Type: research

Altered oscillation of Doppler-derived renal and renal interlobar venous flow velocities in hypertensive and diabetic patients
ConclusionThe renal interlobar venous FVOR is strongly influenced by the arterial RI in HT patients, and is reduced in DM patients without an obvious relationship with diabetic nephropathy. These findings should be noted for the clinical application of renal interlobar venous flow analysis. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 1, 2017 Category: Radiology Source Type: research

A case of a quadricuspid aortic valve identified preoperatively using transthoracic echocardiography
AbstractQuadricuspid 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 ...
Source: Journal of Medical Ultrasonics - January 18, 2017 Category: Radiology Source Type: research

Apodized adaptive beamformer
ConclusionApodization was shown to be effective in adaptive beamforming, and an image obtained by the adaptive beamformer with lateral modulation seemed to have potential for improvement of the accuracy in measurement of tissue lateral motion. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - January 13, 2017 Category: Radiology Source Type: research

Changes in the roles of transrectal ultrasonography for the diagnosis of prostate cancer
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - January 1, 2017 Category: Radiology Source Type: research

Maternal liver elasticity determined by acoustic radiation force impulse elastosonography in intrahepatic cholestasis of pregnancy
ConclusionThe current study found that maternal liver stiffness measured by ARFI elastosonography was increased in pregnancies complicated with ICP. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - December 30, 2016 Category: Radiology Source Type: research

Ultrasound speckle reduction based on fractional order differentiation
ConclusionsUltrasound phantom testing and in vivo imaging show that the proposed method can improve the quality of an ultrasound image in terms of tissue SNR, CNR, and FOM values. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - December 23, 2016 Category: Radiology Source Type: research

Is the unaffected eye really unaffected? Color Doppler ultrasound findings in unilaterally active central serous chorioretinopathy
ConclusionsHemodynamic changes in OA reflect choroidal hyperperfusion. Hemodynamic and OCT changes in the unaffected eyes of the patient group suggest CSC as a bilateral disorder and the systemic nature of the disease. Further investigations may aid in the evaluation of treatment response and the follow-up of disease, providing a new insight into management strategies. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - December 18, 2016 Category: Radiology Source Type: research

Continuous fetal head flexion as a marker for prenatal diagnosis of lethal multiple pterygium syndrome: a case report
AbstractLethal multiple pterygium syndrome (LMPS) is a fatal hereditary disease associated with abnormalities such as pterygium-induced congenital contractures. Fetal hydrops is present in more than half of all patients with LMPS, and all patients with LMPS are either stillborn or die in the early neonatal period. Ultrasonography findings for the prenatal diagnosis of LMPS include the detection of cutaneous webbing at multiple joints, multiple joint contractures, absent limb movement, and increased nuchal translucency. Here, we describe a patient who was diagnosed as having LMPS due to continuous fetal head flexion, despit...
Source: Journal of Medical Ultrasonics - December 16, 2016 Category: Radiology Source Type: research

Acoustic radiation force impulse (ARFI) elastography in the evaluation of renal parenchymal stiffness in patients with ureteropelvic junction obstruction
AbstractPurposeTo 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).MethodsTwenty-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. SWV values of kidneys based on presence of UPJO and ...
Source: Journal of Medical Ultrasonics - December 8, 2016 Category: Radiology Source Type: research

Modern role of clinical ultrasound in liver abscess and echinococcosis
AbstractIn the Western world, liver abscesses are predominantly of pyogenic origin and can present a wide range of ultrasonographic features, from a solid mass to a cystic cavity. Amoebic abscesses are endemic in tropical areas and typically round single lesions. Echinococcal cyst is diagnosed by ultrasound (US). Serology is particularly useful when pathognomonic US features are absent. Treatment is determined based on the WHO ultrasonographic classification, and puncture, aspiration, injection, re-aspiration (PAIR) is a US-guided therapeutic option. Hepatic alveolar echinococcosis presents on US as a pseudotumoral mass fr...
Source: Journal of Medical Ultrasonics - December 8, 2016 Category: Radiology Source Type: research

Measurement of carotid pulse wave velocity using ultrafast ultrasound imaging in hypertensive patients
ConclusionUltrafast ultrasound imaging was a valid and convenient method for the measurement of carotid PWV in hypertensive patients. Ultrafast ultrasound imaging might be recommended as a promising alternative method for early detection of arterial abnormality in clinical practice. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - December 8, 2016 Category: Radiology Source Type: research

Multimodality imaging to assess immediate response following irreversible electroporation in patients with malignant hepatic tumors
AbstractPurposeTo assess the diagnostic accuracy of contrast-enhanced ultrasound (CEUS), contrast-enhanced multiphase CT (CECT), and gadoxetic acid-enhanced MRI (EOB-MRI) in identifying residual tumor in the subacute follow-up of patients with malignant hepatic tumors treated by irreversible electroporation (IRE).MethodsWe enrolled 16 patients with 21 hepatic lesions treated by IRE and examined by CEUS and CECT at 1  day after IRE and by EOB-MRI at 7 days after IRE. Follow-up examinations by EOB-MRI or CECT and CEUS were performed at 3-month intervals. Two radiologists independently reviewed the images and assess...
Source: Journal of Medical Ultrasonics - December 8, 2016 Category: Radiology Source Type: research

Contrast-enhanced ultrasound in diagnosis of primary hepatic angiosarcoma
AbstractPrimary 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 ...
Source: Journal of Medical Ultrasonics - December 1, 2016 Category: Radiology Source Type: research

Prenatal diagnosis of abnormal umbilical cord insertion: a rare case of furcate insertion
AbstractFurcate 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. Although the umbilical cord contained three vessels inserted at the center of the place...
Source: Journal of Medical Ultrasonics - November 17, 2016 Category: Radiology Source Type: research

Usefulness of three-dimensional transesophageal echocardiography for diagnosis of hemolytic anemia due to inverted internal felt strip after surgery for aortic dissection
AbstractFelt 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. At re...
Source: Journal of Medical Ultrasonics - November 17, 2016 Category: Radiology Source Type: research

Evaluation of sorafenib for advanced hepatocellular carcinoma with low α-fetoprotein in arrival time parametric imaging using contrast-enhanced ultrasonography
ConclusionsThe results suggested that AtPI was useful for evaluating early response to sorafenib for advanced HCC with low AFP level. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - November 11, 2016 Category: Radiology Source Type: research

Intrapartum transperineal ultrasound for evaluating uterine contraction intensity in the second stage of labor
AbstractPurposeTo 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.MethodsA 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. The Mann–WhitneyU test was used to compare ...
Source: Journal of Medical Ultrasonics - November 10, 2016 Category: Radiology Source Type: research

Isolated breast vasculitis manifested as breast edema with suggestive sonographic findings: a case report with imaging findings
We report a case of isolated BV that was suspected of being inflammatory breast cancer clinically, but manifested as bilateral breast edema on mammography. In this case, sonographic findings included not only nonspecific edema findings that might be se en in other cases, but also suggestive findings of hypoechoic circumferential arterial wall thickening with perivascular fat infiltrations that are similar to the halo sign in large arteries but have not been reported in the breast. These are helpful for presumptive diagnosis of BV using ultrasound. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - November 9, 2016 Category: Radiology Source Type: research

Real-time three-dimensional echocardiography of left atrial volume and function in patients with severe multi-vessel coronary artery disease
AbstractPurposeTo 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).MethodsOne 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. LA ejection fractions (EF) and LA function index (LAFI) were also calculated.ResultsThere were no significant differences between the single-ve...
Source: Journal of Medical Ultrasonics - November 2, 2016 Category: Radiology Source Type: research

Improving beamforming performance by phased synthetic aperture imaging in medical ultrasound
ConclusionIn applications where there are no important limitations on the SNR, PSA imaging is recommended as it increases the ability of the receive beamformer for better focusing. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - October 28, 2016 Category: Radiology Source Type: research

Differential diagnosis of idiopathic granulomatous mastitis and breast cancer using acoustic radiation force impulse imaging
AbstractPurposeDifferentiation 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.MethodsFour 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. US-guided pe...
Source: Journal of Medical Ultrasonics - October 27, 2016 Category: Radiology Source Type: research