Publications by authors named "Ayako Sekine"

Article Synopsis
  • Left ventricular outflow tract obstruction (LVOTO) can occur in older patients without hypertrophic cardiomyopathy (non-HCM), even if pressure gradients are below 30 mmHg at rest.
  • This study included 33 non-HCM patients and examined their LVOT using Doppler measurements before and after the Valsalva maneuver and an upright sitting maneuver.
  • Results showed that 61% of patients demonstrated latent LVOTO after these maneuvers, with the sitting maneuver being more effective, particularly among those with a smaller angle between the left ventricular septum and aorta.
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Article Synopsis
  • * Results showed that while the accuracy of detecting regional wall-motion abnormalities (RWMAs) improved slightly with the slow-motion technique (87.5%) compared to conventional ESE (81.0%), this difference was not statistically significant.
  • * The new method demonstrated enhanced image readability and better interreader agreement among cardiologists, suggesting it could be a beneficial tool to assist physicians in evaluations, despite the accuracy not being significantly improved.
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Subcutaneous masses caused by foreign bodies are frequently encountered in daily practice. Although the majority of foreign bodies such as metals can be detected by radiography, substances such as vegetative materials or wood are difficult to detect. To our knowledge, only a few studies have described the sonographic characteristics of foreign bodies.

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Epidemiologic data suggest that non-alcoholic fatty liver disease (NAFLD) have an increased tendency to occur in patients who are associated with metabolic conditions such as obesity, type 2 diabetes mellitus, and dyslipidemia. NAFLD represents a wide spectrum of conditions ranging from fatty liver, which in general follows a benign, no-progressive clinical course, to non-alcoholic steatohepatitis (NASH), a more serious form of NAFLD that may progress to cirrhosis and end stage liver disease. However, currently the diagnosis of NASH requires an invasive liver biopsy.

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We present a case of an asymptomatic 70-year-old man with intussusception of the descending colon due to inflammatory myofibroblastic proliferation. Abdominal ultrasound examination showed a hypoechoic mass, 32 × 19 mm in size, accompanied by intussusception in the descending colon, and power Doppler sonography detected blood flow signals in the mass. Computed tomography revealed a hypervascular lesion, which was confirmed by barium enema and colonoscopy.

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This study aimed to compare the intraobserver and interobserver reliability of three-dimensional (3D) and two-dimensional (2D) power Doppler ultrasonography (PDUS) and to assess the relationship between 3D PDUS and clinical parameters in patients with rheumatoid arthritis (RA). Bilateral second/third metacarpophalangeal joints and second/third proximal interphalangeal joints in 33 patients were examined by both 2D and 3D PDUS. Each joint was given a separate 2D PDUS subjective score (range, 0-3) in a standard manner.

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Objective: Early detection of nerve dysfunction is important to provide appropriate care for patients with diabetic polyneuropathy. The aim of this study was to assess the echo intensity of the peripheral nerve and to evaluate the relationship between nerve conduction study results and sonographic findings in patients with type 2 diabetes mellitus.

Methods: Thirty patients with type 2 diabetes (mean +/- SD, 59.

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