Color Doppler shear wave elastography using commercial ultrasound machine with compensated transducer scanning delay
ConclusionUsing this method, the elasticity of a biological tissue-mimicking phantom can be recovered with less strict constraint. As a result, it provides more flexibility to be implemented in common ultrasound machines. This method may be practically used to help identify tissue stiffness-related disease. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 28, 2022 Category: Radiology Source Type: research
Tongue model construction based on ultrasound images with image processing and deep learning method
ConclusionWe have constructed a tongue model and generated a tongue movement animation of an LA patient using US images. The maximum vertical error between the ground truth and the estimated spline curves was only 1.03 mm, and we have confirmed that the generated tongue model is very useful for speech therapy in LA patients. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 18, 2022 Category: Radiology Source Type: research
Application of ultrasound for the diagnosis of cirrhosis/portal hypertension
AbstractWith advances in technologic approaches in patients with cirrhosis, including the improvement of management, a simple, one-step approach for advanced fibrotic state of the liver is clinically useful. Although refining the diagnosis of cirrhosis to reflect disease heterogeneity is essential, current diagnostic tests have not kept pace with the progression of this new paradigm. There are unmet needs in primary care centers with respect to patients with cirrhosis. Liver biopsy and measurement of hepatic venous pressure gradient in patients with cirrhosis are the gold standards for the estimation of hepatic fibrosis, a...
Source: Journal of Medical Ultrasonics - February 18, 2022 Category: Radiology Source Type: research
Diagnosis of ulcerative colitis and Crohn's disease using transabdominal ultrasonography
AbstractThe following are some common features of ulcerative colitis (UC) and Crohn's disease (CD) on transabdominal ultrasonography (TUS). UC, which consists primarily of mucosal inflammation, is seen on TUS as wall thickening with preserved layer structure continuing from the rectum in the active phase of UC. Inflammation confined to the mucosa is seen as thickening of the mucosal/submucosal layers. When the inflammation becomes severe, the echogenicity of the submucosal layer decreases and the layer structure becomes indistinct. CD, which consists primarily of discontinuous transmural inflammation, shows more pronounced...
Source: Journal of Medical Ultrasonics - February 16, 2022 Category: Radiology Source Type: research
Transabdominal ultrasonographic diagnosis of relatively rare pancreatic neoplasms
AbstractThere are various types of pancreatic neoplasms, and their prognosis and treatment methods are different. Therefore, accurate diagnosis is important to determine the best treatment strategy. Transabdominal ultrasonography is frequently used as a screening examination for diagnostic imaging of pancreatic neoplasms. In this review, we have focused on the characteristics of ultrasonic findings for relatively rare pancreatic neoplasms. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 12, 2022 Category: Radiology Source Type: research
Role of liver stiffness measurements in patients who develop hepatocellular carcinoma after clearance of the hepatitis C virus
ConclusionIn patients with a sustained virological response, risk of developing cancer can be predicted by measuring Vs approximately 6 months after treatment. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - February 7, 2022 Category: Radiology Source Type: research
Point-of-care ultrasound for stroke patients in the emergency room
AbstractStroke requires rapid determination of the cause to provide timely and appropriate initial management. Various ultrasonographic techniques have been evaluated as ways to determine the cause of stroke; among them, carotid artery ultrasonography is particularly useful since it provides considerable information within a short time period when used to evaluate a specific site. In the emergency room, carotid artery ultrasonography can be used to diagnose internal carotid artery stenosis, predict an occluded vessel, and infer the cause of ischemic stroke. Additionally, carotid artery ultrasonography can diagnose differen...
Source: Journal of Medical Ultrasonics - February 3, 2022 Category: Radiology Source Type: research
The roles of global longitudinal strain imaging in contemporary clinical cardiology
AbstractMyocardial deformation imaging is now readily available during routine echocardiography and plays an important role in the advanced care of cardiovascular diseases. Its clinical value in detecting subtle myocardial dysfunction, by helping diagnose disease and allowing prediction of disease progression and earlier pharmacological intervention, has been demonstrated. Strain imaging has been the most studied and clinically used technique in the field of cardio-oncology. A relative percent reduction in left ventricular (LV) global longitudinal strain > 15% from baseline is considered a marker of early subclini...
Source: Journal of Medical Ultrasonics - January 28, 2022 Category: Radiology Source Type: research
Enhancement of astaxanthin incorporation by pulsed high-intensity ultrasound in LPS-stimulated macrophages
ConclusionPulsed high-intensity US irradiation combined with AX treatment promoted AX incorporation in cells and enhanced the anti-inflammatory effect on macrophages. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - January 28, 2022 Category: Radiology Source Type: research
Evaluation of an MRI/US fusion technique for the detection of non-mass enhancement of breast lesions detected by MRI yet occult on conventional B-mode second-look US
ConclusionThe results suggest that second-look US using RVS helps identify MRI-detected NME lesions that are occult on cB-mode second-look US. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - January 27, 2022 Category: Radiology Source Type: research
Ultrasonography findings for the diagnosis of renal oncocytoma
AbstractRenal oncocytomas are rare benign epithelial tumors of the kidney. However, they are easily misdiagnosed as renal cancers, resulting in unnecessary radical nephrectomy. This review summarizes the use of ultrasound for the diagnosis of renal oncocytomas. On two-dimensional grayscale ultrasound, renal oncocytomas appear as solid, well-defined, round or oval, and relatively isoechoic or slightly hyperechoic masses. On color Doppler flow imaging, the “spoke-wheel” sign is evident. On power Doppler flow imaging, renal oncocytomas show mixed penetrating and peripheral patterns. Renal oncocytomas usually appear as hig...
Source: Journal of Medical Ultrasonics - January 27, 2022 Category: Radiology Source Type: research
A case of metaplastic breast carcinoma with cartilaginous differentiation: comparison with the histology and tissue characterizations of an ultrasound image
(Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - January 27, 2022 Category: Radiology Source Type: research
Promoting the effect of microbubble-enhanced ultrasound on hyperthermia in rabbit liver
ConclusionMEUS reduced the blood perfusion in the targeted liver tissues, and, therefore, overcame the heat-sink effect during the HT procedure in rabbits. MEUS pretreatment might have the potential to enhance the therapeutic effect of HT. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - January 24, 2022 Category: Radiology Source Type: research
Shear wave speed measurement bias in a viscoelastic phantom across six ultrasound elastography systems: a comparative study with transient elastography and magnetic resonance elastography
ConclusionsDespite the measurement biases associated with the SWE systems, biases were not necessarily consistent, and they changed with the probes used and depth measured. The SWS of the viscoelastic phantom obtained using different modalities increased according to the shear wave frequency used. (Source: Journal of Medical Ultrasonics)
Source: Journal of Medical Ultrasonics - January 21, 2022 Category: Radiology Source Type: research
Point-of-care ultrasound for children
AbstractMost diseases in children are acute, and ultrasonography should be performed in emergency cases rather than X-ray or computed tomography (CT) as children are more sensitive to radiation than adults. Therefore, point-of-care ultrasound (POCUS) is especially useful in children. The target organs of pediatric ultrasound are the same as in adults, and the infant brain can also be observed with ultrasound because the fontanel magna is still open. However, there are a number of points that physicians should be aware of regarding pediatric POCUS. There are some diseases specific to children, which are not found in adults....
Source: Journal of Medical Ultrasonics - January 21, 2022 Category: Radiology Source Type: research
