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309 results on '"Takeda, Yu"'

3. Arthroscopic Multi-Spectral Scene Segmentation Using Deep Learning

Author

Ali, Shahnewaz, Jonmohamadi, Yaqub, Takeda, Yu, Roberts, Jonathan, Crawford, Ross, Brown, Cameron, and Pandey, Ajay K.

Subjects
Electrical Engineering and Systems Science - Image and Video Processing, Computer Science - Computer Vision and Pattern Recognition, Computer Science - Robotics
Abstract

Knee arthroscopy is a minimally invasive surgical (MIS) procedure which is performed to treat knee-joint ailment. Lack of visual information of the surgical site obtained from miniaturized cameras make this surgical procedure more complex. Knee cavity is a very confined space; therefore, surgical scenes are captured at close proximity. Insignificant context of knee atlas often makes them unrecognizable as a consequence unintentional tissue damage often occurred and shows a long learning curve to train new surgeons. Automatic context awareness through labeling of the surgical site can be an alternative to mitigate these drawbacks. However, from the previous studies, it is confirmed that the surgical site exhibits several limitations, among others, lack of discriminative contextual information such as texture and features which drastically limits this vision task. Additionally, poor imaging conditions and lack of accurate ground-truth labels are also limiting the accuracy. To mitigate these limitations of knee arthroscopy, in this work we proposed a scene segmentation method that successfully segments multi structures.

Published
2021

8. Establishment of a reference single-cell RNA sequencing dataset for human pancreatic adenocarcinoma

Author

Chijimatsu, Ryota, Kobayashi, Shogo, Takeda, Yu, Kitakaze, Masatoshi, Tatekawa, Shotaro, Arao, Yasuko, Nakayama, Mika, Tachibana, Naohiro, Saito, Taku, Ennishi, Daisuke, Tomida, Shuta, Sasaki, Kazuki, Yamada, Daisaku, Tomimaru, Yoshito, Takahashi, Hidenori, Okuzaki, Daisuke, Motooka, Daisuke, Ohshiro, Takahito, Taniguchi, Masateru, Suzuki, Yutaka, Ogawa, Kazuhiko, Mori, Masaki, Doki, Yuichiro, Eguchi, Hidetoshi, and Ishii, Hideshi

Published
2022
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10. MicroRNA-26a-5p is a reliable biomarker in the adjuvant setting for pancreatic ductal adenocarcinoma.

Author

Takeda, Yu, Yamada, Daisaku, Kobayashi, Shogo, Sasaki, Kazuki, Iwagami, Yoshifumi, Tomimaru, Yoshito, Noda, Takehiro, Takahashi, Hidenori, Asaoka, Tadafumi, Shimizu, Junzo, Doki, Yuichiro, and Eguchi, Hidetoshi

Subjects
*GENE expression, *PANCREATIC duct, *ADJUVANT chemotherapy, *BLOOD testing, *BIOMARKERS
Abstract

Pancreatic ductal adenocarcinoma (PDAC) has a high recurrence rate even after radical resection because of subclinical tumors. To manage them, a reliable biomarker that can indicate the presence of subclinical tumors and predict their chemosensitivity is required. This study aimed to identify a miRNA as a biomarker that can be used to individualize postoperative adjuvant chemotherapy using postoperative peripheral blood samples. Integrating miRNA microarray data from the blood of 18 patients with PDAC and the in vitro results regarding the phenotypes of chemoresistant PDAC cells, a candidate miRNA was identified. The relationships between candidate miRNA expression and chemosensitivity were examined in vitro and in clinical samples from other cohorts of 33 patients with recurrence. Comprehensive analyses of blood samples detected 5 candidate miRNAs. Of these, miR-26a-5p was considered a candidate biomarker of chemosensitive phenotypes. In validation experiments, chemosensitivity was inversely correlated with miR-26a-5p expression in vitro. Moreover, the ability of miR-26a-5p to predict chemosensitivity was clinically evaluated using blood samples. Patients with high miR-26a-5p expression in the blood after radical resection exhibited a significantly longer survival time after recurrence. Thus, we concluded that miR-26a-5p is a potentially useful biomarker for managing patients with PDAC, especially those undergoing adjuvant chemotherapy. [ABSTRACT FROM AUTHOR]

Published
2024
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11. High N6‐methyladenosine‐activated TCEAL8 mRNA is a novel pancreatic cancer marker

Author

Hara, Tomoaki, primary, Meng, Sikun, additional, Sato, Hiromichi, additional, Tatekawa, Shotaro, additional, Sasaki, Kazuki, additional, Takeda, Yu, additional, Tsuji, Yoshiko, additional, Arao, Yasuko, additional, Ofusa, Ken, additional, Kitagawa, Toru, additional, Yamada, Daisaku, additional, Takahashi, Hidenori, additional, Kobayashi, Shogo, additional, Motooka, Daisuke, additional, Suzuki, Yutaka, additional, Rennie, Sarah, additional, Uchida, Shizuka, additional, Mori, Masaki, additional, Ogawa, Kazuhiko, additional, Doki, Yuichiro, additional, Eguchi, Hidetoshi, additional, and Ishii, Hideshi, additional

Published
2024
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18. Automatic 3D MRI-Ultrasound Registration for Image Guided Arthroscopy

Author

Gayatri Kompella, Jeevakala Singarayan, Maria Antico, Fumio Sasazawa, Takeda Yu, Keerthi Ram, Ajay K. Pandey, Davide Fontanarosa, and Mohanasankar Sivaprakasam

Subjects
image registration, ultrasound-MRI registration, image guided knee arthroscopy, 4D ultrasound, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
Abstract

Registration of partial view intra-operative ultrasound (US) to pre-operative MRI is an essential step in image-guided minimally invasive surgery. In this paper, we present an automatic, landmark-free 3D multimodal registration of pre-operative MRI to 4D US (high-refresh-rate 3D-US) for enabling guidance in knee arthroscopy. We focus on the problem of initializing registration in the case of partial views. The proposed method utilizes a pre-initialization step of using the automatically segmented structures from both modalities to achieve a global geometric initialization. This is followed by computing distance maps of the procured segmentations for registration in the distance space. Following that, the final local refinement between the MRI-US volumes is achieved using the LC2 (Linear correlation of linear combination) metric. The method is evaluated on 11 cases spanning six subjects, with four levels of knee flexion. A best-case error of 1.41 mm and 2.34∘ and an average registration error of 3.45 mm and 7.76∘ is achieved in translation and rotation, respectively. An inter-observer variability study is performed, and a mean difference of 4.41 mm and 7.77∘ is reported. The errors obtained through the developed registration algorithm and inter-observer difference values are found to be comparable. We have shown that the proposed algorithm is simple, robust and allows for the automatic global registration of 3D US and MRI that can enable US based image guidance in minimally invasive procedures.

Published
2022
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20. Superstructure

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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21. Vibration Prevention

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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23. Fore Construction

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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25. Double Hull Structure

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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26. Engine Room Construction

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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27. Deck Structure

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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28. Shell Structure

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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29. Bulkheads

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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30. Hull Structure Arrangement

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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31. Torsional Strength

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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32. Transverse Strength of Ship

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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33. Design of Girders

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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34. Design of Beams

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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35. Hull Structural Vibration

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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36. Deflection of Hull Structures

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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37. Welding

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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38. Design of Plates

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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39. Torsion

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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40. Design of Stiffened Panel

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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41. Hull Structure Design System

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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42. Progress in Ship Design

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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43. Finite Element Method

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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44. Materials

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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45. Strength Evaluation

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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47. Structural Design Loads

Author

Okumoto, Yasuhisa, Takeda, Yu, Mano, Masaki, Okada, Tetsuo, Okumoto, Yasuhisa, editor, Takeda, Yu, editor, Mano, Masaki, editor, and Okada, Tetsuo, editor

Published
2009
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49. Difficult Preoperative Diagnosis of Suspected Metal Hypersensitivity in a Case with Early Failure of Bipolar Hemiarthroplasty

Author

Shimmyo, Airi, Takeda, Yu, and Fukunishi, Shigeo

Abstract

Background. Metal hypersensitivity is a rare complication after total hip arthroplasty (THA), and no reliable diagnostic method for metal hypersensitivity to orthopedic metal implants has yet been established. Case report. A 57-year-old woman underwent hemiarthroplasty using a metal implant despite a skin allergy to metal jewelry. Two years after surgery, the patient developed early hemiarthroplasty failure and refractory erythema. Although the patient was clinically suspected to have a hypersensitivity to metal, the preoperative screening test was negative, and patient underwent revision surgery with cemented THA. Postoperatively, the erythema as well as her hip pain disappeared completely. Conclusion. Patients with clinically suspected metal hypersensitivity should undergo primary and revision total hip arthroplasty using hypoallergenic implants regardless of preoperative screening results.

Published
2023
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