Nobuyuki Taniguchi

Learn More
OBJECTIVE To assess the feasibility of a new method of measuring the attenuation coefficient in the liver, which offers less variability of results than the conventional method. METHODS The attenuation coefficient was evaluated on the basis of the following equation with sound field correction: [log(M0 (z)) - tau(z)]. In our system, the attenuation(More)
To assess the feasibility of a new system that uses the finite amplitude method and makes possible the assessment of the degree of nonlinear generation in vivo we adopted a method for agar-gel phantoms, using varying lipid concentrations and human livers in vivo. Instead of calculating the nonlinearity parameter B/A value, we evaluated the h value, which is(More)
This study aimed to evaluate the usefulness of sentinel lymph node (SLN) detection in breast cancer using contrast-enhanced ultrasonography (CEUS) with subareolar Sonazoid injection. The subjects were 20 breast cancer patients. General anesthesia was induced and 2 mL of Sonazoid was injected subareolarly. After massage of the injection site, the axillary(More)
AIMS To evaluate uterine cervical consistency using a vaginal ultrasound gray-level histogram. METHODS Vaginal ultrasound and digital examination were performed for 214 women with low-risk singleton pregnancy during 27-30(th) pregnancy week. The mean gray-level (MGL) of an ultrasound gray-level histogram, representing the echogenicity of a region of(More)
OBJECTIVE To determine whether contrast ultrasonography can affect the sinusoidal cells and platelets of the liver by using ultrastructural analysis in vivo. METHODS Fifteen Wistar rats were placed into the following 5 groups of 3 rats each: 3 control groups comprising a sham operation group, a contrast agent injection-alone group, and an ultrasound(More)
BACKGROUND Inflammation, often accompanied by oxidation, caused by advanced glycation end products (AGEs) may be quenched by the soluble receptor for AGEs (sRAGE). The present study aimed to investigate the influence of physical activity on circulating sRAGE, and the association between changes of circulating sRAGE and paraoxonase1 (PON1) activity (as an(More)
OBJECT The goal of this study was to combine the use of ultrasound contrast agents with intraoperative ultrasound techniques to identify intraoperatively a patient's vascular anatomy, including feeding arteries and draining veins of an intracranial arteriovenous malformation (AVM). METHODS The authors examined 12 consecutive patients with AVMs that had(More)
We report a case of intussusception caused by a villous tumor of the ascending colon in an 82-year-old man. Abdominal sonography showed intussusception in the ascending colon, with a transverse scan demonstrating a multiple concentric ring sign. Color Doppler sonography showed blood flow signals in a mass, which was considered to be the lead point of the(More)