Mayumi Yamamoto

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In this paper, we apply a Hidden Markov Model (HMM) to analyze time-series personal health checkup data. HMM is widely used for data having continuation and extensibility such as time-series health checkup data. Therefore, using HMM as probabilistic model to model the health checkup data is considered to be suitable, and HMM can express the process of(More)
To investigate brain activation in the prefrontal cortex (PFC) during emotional experiences, we examined blood oxygenation changes of healthy female volunteers by using multi-channel Near Infrared Spectroscopy (NIRS). Results directly confirmed that the PFC was activated during emotional tasks suggesting that the levels of oxy-Hb increased significantly(More)
Abnormal glucose tolerance during pregnancy is associated with perinatal complications. We used continuous glucose monitoring (CGM) in pregnant women with glucose intolerance to achieve better glycemic control and to evaluate the maternal glucose fluctuations. We also used CGM in women without glucose intolerance (the control cases). Furthermore, the(More)
BACKGROUND Atrial fibrillation (AF) is a significant risk factor for ischemic strokes, and making a robust risk stratification scheme would be important. Few studies have examined whether nonlinear dynamics of the heart rate could predict ischemic strokes in AF. We examined whether a novel complexity measurement of the heart rate variability called(More)
Attention is the process by which information and selection occurs, the thalamus plays an important role in the selective attention of visual and auditory information. Selective attention is a conscious effort; however, it occurs subconsciously, as well. The lateral geniculate body (LGB) filters visual information before it reaches the cortex (bottom-up(More)
BACKGROUND Immunoglobulin (Ig) E is well-known to play a critical role in allergic diseases. We investigated the association between longitudinal change in total IgE level and the asthma control in patients with adult asthma. METHODS For this retrospective study, 154 patients with asthma aged 21-82 years were recruited from the allergy and pulmonary units(More)
AIMS/INTRODUCTION To investigate trends over the past 20 years for the prevalence of obesity and glycemic control in association with a patient's first hospital visit for type 2 diabetes mellitus. MATERIALS AND METHODS This was a historical, cross-sectional, time-series, single-center study carried out at Marunouchi Hospital. Data from type 2 diabetic(More)
OBJECTIVE We have improved a transducer holder for transcranial color duplex sonography (TCDS) monitoring via both the temporal and foraminal windows (TW/FW). The objective is to clarify the clinical usefulness of and identify problems with TCDS monitoring in the evaluation of brain tissue perfusion. METHODS Brain tissue perfusion was monitored in 11(More)
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