Development of upright computed tomography with area detector for whole-body scans: phantom study, efficacy on workflow, effect of gravity on human body, and …
…, T Nagura, T Nakahara, Y Yokoyama… - Investigative …, 2020 - journals.lww.com
Objectives Multiple human systems are greatly affected by gravity, and many disease symptoms
are altered by posture. However, the overall anatomical structure and pathophysiology …
are altered by posture. However, the overall anatomical structure and pathophysiology …
Effect of gravity on brain structure as indicated on upright computed tomography
Y Yokoyama, Y Yamada, K Kosugi, M Yamada… - Scientific reports, 2021 - nature.com
We aimed to use upright computed tomography (CT) to depict posture-related changes in
the brain tissue under normal gravity. Thirty-two asymptomatic volunteers underwent upright …
the brain tissue under normal gravity. Thirty-two asymptomatic volunteers underwent upright …
Comparison of inspiratory and expiratory lung and lobe volumes among supine, standing, and sitting positions using conventional and upright CT
Y Yamada, M Yamada, S Chubachi, Y Yokoyama… - Scientific reports, 2020 - nature.com
Currently, no clinical studies have compared the inspiratory and expiratory volumes of
unilateral lung or of each lobe among supine, standing, and sitting positions. In this prospective …
unilateral lung or of each lobe among supine, standing, and sitting positions. In this prospective …
[HTML][HTML] Differences in lung and lobe volumes between supine and standing positions scanned with conventional and newly developed 320-detector-row upright CT …
Y Yamada, M Yamada, Y Yokoyama, A Tanabe… - Respiration, 2020 - karger.com
Background: No clinical studies to date have compared unilateral lung or lobe volumes
between the supine and standing positions. Objectives: To compare lung/lobe volumes on …
between the supine and standing positions. Objectives: To compare lung/lobe volumes on …
Posture-induced changes in the vessels of the head and neck: evaluation using conventional supine CT and upright CT
K Kosugi, Y Yamada, M Yamada, Y Yokoyama… - Scientific reports, 2020 - nature.com
Since the venous system is affected by gravity, upright computed tomography (CT) in
addition to conventional supine CT has great potential for evaluating postural changes in the …
addition to conventional supine CT has great potential for evaluating postural changes in the …
Kidney outcomes and all-cause mortality in people with type 2 diabetes exhibiting non-albuminuric kidney insufficiency
Y Yamamoto, K Hanai, T Mori, Y Yokoyama, N Yoshida… - Diabetologia, 2022 - Springer
Aim/hypothesis It remains unclear whether people with diabetes exhibiting non-albuminuric
kidney insufficiency have higher risk of kidney function decline and mortality compared with …
kidney insufficiency have higher risk of kidney function decline and mortality compared with …
Comparison of lung, lobe, and airway volumes between supine and upright computed tomography and their correlation with pulmonary function test in patients with …
Y Yamada, S Chubachi, M Yamada, Y Yokoyama… - Respiration, 2022 - karger.com
Background: Correlations between upright CT and pulmonary function test (PFT) measurements,
and differences in lung/lobe/airway volumes between supine and standing positions in …
and differences in lung/lobe/airway volumes between supine and standing positions in …
Effect of natural full weight‐bearing during standing on the rotation of the first metatarsal bone
…, Y Yamada, M Yamada, Y Yokoyama… - Clinical …, 2019 - Wiley Online Library
To evaluate the rotational change in the first metatarsal bone (1MT) of the foot during natural
standing using an upright computed tomography (CT) scanner with 320‐detector rows. A …
standing using an upright computed tomography (CT) scanner with 320‐detector rows. A …
Analysis of lap belt fit to human subjects using CT images
In vehicle collisions, the lap belt should engage the anterior superior iliac spine (ASIS). In
this study, threedimensional (3D) shapes of bones and soft tissues around the pelvis were …
this study, threedimensional (3D) shapes of bones and soft tissues around the pelvis were …
Pre-existing interstitial lung abnormalities and immune checkpoint inhibitor-related pneumonitis in solid tumors: A retrospective analysis
…, S Okamori, Y Yamada, Y Yokoyama… - The …, 2024 - academic.oup.com
Background Immune checkpoint inhibitors (ICIs) have demonstrated efficacy over previous
cytotoxic chemotherapies in clinical trials among various tumors. Despite their favorable …
cytotoxic chemotherapies in clinical trials among various tumors. Despite their favorable …