Contrast-enhanced ultrasound for needle biopsy of central lung cancer with atelectasis
ConclusionCEUS has important clinical value for needle biopsy of central lung cancer with atelectasis. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - December 14, 2017 Category: Radiology Source Type: research

Thoracoabdominal aortic mural and floating thrombus extending into superior mesenteric artery
AbstractThrombus in the thoracic aorta not related to aneurysm or atherosclerosis is a rare clinical entity with a limited number of cases reported. Floating thrombus is defined as non-adherent part of the thrombus floating within the aortic lumen. Herein, we present a 48-year-old woman who presented with progressive midline dull, aching abdominal pain of 2-day duration. Thoracoabdominal computed tomography revealed a free floating thrombus extending from the aortic arch into the superior mesenteric artery. Transesophageal echocardiography confirmed the findings of a thrombus extending through the aortic arch. Floating thr...
Source: Journal of Medical Ultrasonics - December 13, 2017 Category: Radiology Source Type: research

The intra-conduit release method is useful for avoiding migration of metallic stents during EUS-guided hepaticogastrostomy (with video)
ConclusionThe intra-conduit release method during EUS-HGS is useful for a stable procedure that avoids early adverse events. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - December 13, 2017 Category: Radiology Source Type: research

Endoscopic ultrasound-guided biliary drainage using a newly designed metal stent with a thin delivery system: a preclinical study in phantom and porcine models
ConclusionOur newly designed metal stent may be feasible and safe for EUS-BD, particularly when delivered by 7Fr-tee, because it eliminates the need for fistulous tract dilation. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - December 8, 2017 Category: Radiology Source Type: research

Triphasic mitral inflow pattern associated with hemodynamic deterioration in anemia or mitral regurgitation: a report of two cases
We present two cases with a mid-diastolic mitral inflow peak called an “L wave” due to underlying diseases. Case 1 was an 81-year-old woman with severe anemia (hemoglobin level of 3.9 g/dL). Pulsed Doppler echocardiography showed an L wave that disappeared after transfusion of red cell concentrates. Case 2 was a 72-year-old woman with severe mitral regurgitation d ue to ruptured chordae tendineae. Pulsed Doppler echocardiography showed an L wave that disappeared after mitral valve repair. The present report suggests that both severe anemia and mitral regurgitation might have contributed to L wave formation...
Source: Journal of Medical Ultrasonics - December 7, 2017 Category: Radiology Source Type: research

Value of in vitro acoustic radiation force impulse application on uterine adenomyosis
AbstractPurposeAdenomyosis is the presence of endometrial glandular and stromal tissue in the myometrium. This phenomenon can be the cause of excessive bleeding and menstrual pain in premenopausal women. Diagnosis of adenomyosis may present difficulty with conventional methods such as ultrasound and magnetic resonance imaging. Frequently, diagnosis is accomplished retrospectively based on the hysterectomy specimen.Materials and methodsThis is a prospective case control study done in vitro on 90 patients ’ hysterectomy specimens. Acoustic radiation force impulse (ARFI) and color elastography were used to determine the...
Source: Journal of Medical Ultrasonics - November 24, 2017 Category: Radiology Source Type: research

Is retrograde blood flow of aortic isthmus useful for the prenatal screening of coarctation of the aorta by fetal color Doppler echocardiography? A preliminary study
ConclusionAoI-R determined by color Doppler echocardiography can become a useful tool in the screening of fetal CoA, especially at  
Source: Journal of Medical Ultrasonics - November 23, 2017 Category: Radiology Source Type: research

An experience of second-trimester anhydramnios salvaged by single amnioinfusion
We describe a case of second-trimester anhydramnios with an umbilical cord factor, wherein single amnioinfusion may have successfully broken a vicious circle involving non-reassuring fetal status. A 34-year-o ld primigravid woman was referred to our hospital because of anhydramnios at 22 weeks’ gestation. Single amnioinfusion improved the fetal circulatory failure, and the patient delivered a healthy full-term newborn. Single amnioinfusion may be a therapeutic approach to improve the prognosis of preg nancy when second-trimester anhydramnios results from umbilical cord factors. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - November 20, 2017 Category: Radiology Source Type: research

Development of pseudoaneurysm in cesarean section scar pregnancy: a case report and literature review
AbstractCesarean scar pregnancy (CSP) is a rare type of ectopic pregnancy. It is becoming more common, but it can lead to uterine rupture and severe hemorrhage. Here, we report a case of a 37-year-old woman with CSP complicated with pseudoaneurysm. The pseudoaneurysm emerged following focal injection of methotrexate (MTX) and potassium chloride with systemic MTX treatment. Due to a risk of sudden bleeding, uterine artery embolization (UAE) was recommended, but the patient hoped to avoid this if possible. Because the serum human chorionic gonadotropin level and the gestational sac were still persistent, dilation and curetta...
Source: Journal of Medical Ultrasonics - November 16, 2017 Category: Radiology Source Type: research

Liver fibrosis: noninvasive assessment using supersonic shear imaging and FIB4 index in patients with non-alcoholic fatty liver disease
This study aimed to evaluate the accuracy of SWE and FIB4 index for the diagnosis of fibrosis in a cohort of consecutive patients with biopsy-proven NAFLD, and to evaluate the effects of other histologic parameters on SWE measurement.MethodsWritten informed consent was obtained from all patients, and this study was approved by our internal review board and ethics committee. Seventy-one patients with histologically proven NAFLD (mean age 50.8  years ± 15.7) were examined. All patients underwent SWE (Aixplorer™; SuperSonic Imagine) and FIB4 index (based on age, aspartate aminotransferase and alani...
Source: Journal of Medical Ultrasonics - November 11, 2017 Category: Radiology Source Type: research

Correlation between microcirculation and contrast-enhanced ultrasonography after crush injury of limbs
ConclusionIn vivo microcirculation detection can reflect changes in muscle microvascular diameter and blood flow velocity, which have a correlation with quantitative ultrasound imaging parameters. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - November 10, 2017 Category: Radiology Source Type: research

Intraoperative detection of inferior vena caval tumor thrombus extending from metastatic lymph node of renal cell carcinoma using ultrasonography
AbstractA 67-year-old man consulted our department with gross hematuria. Computed tomography (CT) revealed a huge renal tumor with a paracaval metastatic lymph node (mLN). Right total nephrectomy was planned for the renal tumor diagnosed as renal cell carcinoma preoperatively. Just before the resection of the renal vein and artery, intraoperative ultrasonography revealed an inferior vena caval tumor thrombus (IVCTT) extending from the mLN. Ultrasonography clearly and dynamically demonstrated a rhythmic flapping movement of the IVCTT with blood flow in the inferior vena cava. Following right radical nephrectomy, IVCTT resec...
Source: Journal of Medical Ultrasonics - October 27, 2017 Category: Radiology Source Type: research

Sonographic assessment of subacromial bursa distension during arm abduction: establishing a threshold value in the diagnosis of subacromial impingement syndrome
In this study, we aimed to establish a quantitative threshold value in the diagnosis of subacromial impingement syndrome by measuring the thickness of the subacromial bursa during abduction and adduction.Materials and methodsForty-five patients with subacromial impingement syndrome and 54 healthy individuals underwent dynamic shoulder ultrasonography. The subacromial bursa, between the supraspinatus tendon margin and peribursal adipose tissue, was measured between the acromion and humeral head at its widest part. The subacromial impingement ratio was calculated by dividing the subacromial bursa thickness during abduction t...
Source: Journal of Medical Ultrasonics - October 26, 2017 Category: Radiology Source Type: research

Shear wave elastography evaluation in pediatric testicular microlithiasis: a comparative study
AbstractPurposeThe aim of this study was to evaluate the testicular parenchyma in pediatric patients with testicular microlithiasis by shear wave elastography (SWE) and compare the values with normal control subjects.MethodsTwenty-three patients previously diagnosed with testicular microlithiasis under follow-up for 20  ± 11 months were included in the study group. In the control group, 31 patients with no medical history that could affect testicular tissue were prospectively included. Forty-six testes in the study group and 62 testes in the control group were evaluated with gray-scale ultrasound and ...
Source: Journal of Medical Ultrasonics - October 26, 2017 Category: Radiology Source Type: research

Correction to: Altered oscillation of Doppler-derived renal and renal interlobar venous flow velocities in hypertensive and diabetic patients
In the original publication of this paper the legend of Fig.  1 should read as:Fig.  1 Pulsed Doppler flow velocity recordings of the aorta (a), right renal artery (b), right renal interlobar artery (c), inferior vena cava (d), right renal vein (e), and right renal interlobar vein (f).PSV peak systolic velocity,EDV end-diastolic velocity,VMAX maximum velocity,VMIN minimum velocity (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - October 23, 2017 Category: Radiology Source Type: research

Potential diagnostic performance of contrast-enhanced ultrasound and tumor markers in differentiating combined hepatocellular –cholangiocarcinoma from hepatocellular carcinoma and cholangiocarcinoma
ConclusionThe combination of enhancement patterns on CEUS and serum tumor markers (AFP and CA19-9) may be a potentially specific diagnostic method to differentiate CHC from HCC and CC. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - October 20, 2017 Category: Radiology Source Type: research

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