Personnel Information

写真a

KOBAYASHI Masaki
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Campus Career 【 display / non-display 】

  • 2021.10
    -
    Now
    Tokyo Medical and Dental University， Graduate School of Medical and Dental Sciences， Medical and Dental Sciences， Systemic Organ Regulation， Urology， Senior Resident
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Published Papers & Misc 【 display / non-display 】

  1. Shintaro Asai, Masaki Kobayashi, Shohei Fukuda, Koichiro Kimura, Soichiro Yoshida, Yasuhisa Fujii. Significance of atypical nodules upgraded to category 3 in Prostate Imaging Reporting and Data System version 2.1 for prostate cancer diagnosis International Journal of Urology. 2024.02;

  2. Masaki Kobayashi, Yoh Matsuoka, Sho Uehara, Hiroshi Tanaka, Motohiro Fujiwara, Yuki Nakamura, Yudai Ishikawa, Shohei Fukuda, Yuma Waseda, Hajime Tanaka, Soichiro Yoshida, Yasuhisa Fujii. Utility of positive core number on MRI-ultrasound fusion targeted biopsy in combination with PI-RADS scores for predicting unexpected extracapsular extension of clinically localized prostate cancer International Journal of Urology. 2024.02;

  3. Yuki Nakamura, Hiroshi Fukushima, Kasumi Yoshitomi, Takahiko Soma, Masaki Kobayashi, Bo Fan, Motohiro Fujiwara, Yudai Ishikawa, Shohei Fukuda, Yuma Waseda, Hajime Tanaka, Soichiro Yoshida, Minato Yokoyama, Yasuhisa Fujii. Significance of dorsal bladder neck involvement in predicting the progression of non-muscle-invasive bladder cancer. Int J Urol. 2022.12; ( PubMed, DOI )

  4. Chen W, Yokoyama M, Kobayashi M, Fan B, Fukuda S, Waseda Y, Tanaka H, Yoshida S, Ai M, Fushimi K, Nonomura N, Fujii Y. Trends of radical cystectomy and comparisons of surgical outcomes among surgical approaches focusing on robot-assisted radical cystectomy: A Japanese nationwide database study Int J Urol. 2022.12;

  5. Yuma Waseda, Ryoji Takazawa, Masaki Kobayashi, Honoka Fuse, Takashi Tamiya. Risk factors and predictive model for incidence of difficult ureter during retrograde ureteroscopic lithotripsy. Int J Urol. 2022.02; 29 (6): 542-546. ( PubMed, DOI )

  6. Kobayashi M, Waseda Y, Fuse H, Takazawa R. Variables measured on three-dimensional computed tomography are preferred for predicting the outcomes of shock wave lithotripsy. World journal of urology. 2022.02; 40 (2): 569-575. ( PubMed, DOI )

  7. Preedanan W, Suzuki K, Kondo T, Kobayashi M, Tanaka H, Ishioka J, Matsuoka Y, Fujii Y, Kumazawa I.. Improvement of Urinary Stone Segmentation Using GAN-Based Urinary Stones Inpainting Augmentation. IEEE Access. 2022;

  8. Kobayashi Masaki, Ishioka Junichiro, Matsuoka Yoh, Fukuda Yuichi, Kohno Yusuke, Kawano Keizo, Morimoto Shinji, Muta Rie, Fujiwara Motohiro, Kawamura Naoko, Okuno Tetsuo, Yoshida Soichiro, Yokoyama Minato, Suda Rumi, Saiki Ryota, Suzuki Kenji, Kumazawa Itsuo, Fujii Yasuhisa. Computer-aided diagnosis with a convolutional neural network algorithm for automated detection of urinary tract stones on plain X-ray BMC UROLOGY. 2021.08; 21 (1): 102. ( PubMed, DOI )

  9. Kobayashi M, Takazawa R, Waseda Y, Tsujii T. How does pre-operative antimicrobial treatment influence the intra-operative culture results and infectious complications in patients with positive baseline bladder urine culture undergoing ureteroscopic lithotripsy? Urolithiasis. 2021.08; 49 (4): 335-344. ( PubMed, DOI )

  10. Waseda Y, Takazawa R, Kobayashi M, Tsujii T. Chronic Unilateral Hematuria: Compound Papillae Are Likely to Bleed. Journal of endourology. 2021.07; 35 (7): 1072-1077. ( PubMed, DOI )

  11. Kobayashi M, Yokoyama M, Inoue M, Fujii Y. Undifferentiated prostate cancer treated with docetaxel. IJU case reports. 2020.07; 3 (4): 125-127. ( PubMed, DOI )

  12. Kobayashi M, Fukushima H, Kawano K, Morimoto S. A case of nontraumatic urethral rupture possibly induced by prostatic abscess. Urology case reports. 2020.07; 31 101163. ( PubMed, DOI )

  13. Waseda Y, Takazawa R, Kobayashi M, Yoshida S, Uchida Y, Kohno Y, Tsujii T. Successful outcomes of endoscopic lithotripsy in completely bedridden patients with symptomatic urinary calculi. Scientific reports. 2020.06; 10 (1): 8839. ( PubMed, DOI )

  14. Kato R, Fukushima H, Kobayashi M, Kawano K, Morimoto S. A young female case of primary renal carcinoid tumor mimicking fat-poor angiomyolipoma. International cancer conference journal. 2018.10; 7 (4): 156-158. ( PubMed, DOI )

  15. Fukushima H, Kobayashi M, Kawano K, Morimoto S. Performance of Quick Sequential (Sepsis Related) and Sequential (Sepsis Related) Organ Failure Assessment to Predict Mortality in Patients with Acute Pyelonephritis Associated with Upper Urinary Tract Calculi. The Journal of urology. 2018.06; 199 (6): 1526-1533. ( PubMed, DOI )

  16. Fukushima H, Kobayashi M, Kawano K, Morimoto S. Prognostic Value of Albumin/Globulin Ratio in Patients with Upper Tract Urothelial Carcinoma Patients Treated with Radical Nephroureterectomy. Anticancer research. 2018.04; 38 (4): 2329-2334. ( PubMed, DOI )

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Conference Activities & Talks 【 display / non-display 】

  1. Masaki Kobayashi. Comparison of the utility of worst vs. global Gleason grade group in MRI-US fusion biopsy for predicting postprostatectomy biochemical recurrence. EAU 2024 2024.04

  2. Kobayashi masaki. Value of MRI-ultrasound fusion targeted prostate biopsy for non-index lesions in combination with index lesion- targeted biopsy and systematic biopsy. the 110th Annual Meeting of the Japanese Urological Association 2023.04.20

  3. Masaki Kobayashi, Yoh Matsuoka, Shohei Fukuda, Koichiro Kimura, Motohiro Fujiwara, Yuki Nakamura, Yudai Ishikawa, Yuma Waseda, Hajime Tanaka, Soichiro Yoshida, Minato Yokoyama, Yasuhisa Fujii. Significance of MRI-ultrasound fusion targeted prostate biopsy for non-index PI-RADS ≥3 lesions in combination with index lesion-targeted biopsy and systematic biopsy. European Association of Urology2023 2023.03.11

  4. Y. Ishikawa, S. Uehara, K. Ishihara, K. Hirose, T. Soma, M. Fujiwara, M. Kobayashi, B. Fan, Y. Nakamura, Y. Uchida, S. Fukuda, H. Tanaka, S. Yoshida, M. Yokoyama, Y. Matsuoka, Y. Fujii. Variability in diagnostic performance of non-muscle invasive bladder cancer for each region using 8uorescence cystoscopy with orally administered 5-aminolevulinic acid. 37th Annual EAU Congress 2022 European Association of Urology 2022.07.01

  5. Y. Ishikawa, S. Uehara, K. Ishihara, K. Hirose, T. Soma, M. Fujiwara, M. Kobayashi, B. Fan, Y. Nakamura, Y. Uchida, S. Fukuda, H. Tanaka, S. Yoshida, M. Yokoyama, Y. Matsuoka, Y. Fujii. Orally administered 5-aminolevulinic acid can cause intraoperative hypotension in patients with bladder cancer undergoing transurethral resection. 37th Annual EAU Congress 2022 European Association of Urology 2022.07.01

  6. Ishikawa Y, Uehara S, Ishihara K, Hirose K, Soma T, Fujiwara M, Kobayashi M, Fan B, Nakamura Y, Uchida Y, Fukuda S, Tanaka H, Yoshida S, Yokoyama M, Matsuoka Y, Fujii Y. Variability in diagnostic performance of non-muscle invasive bladder cancer for each region using fluorescence cystoscopy with orally administered 5-aminolevulinic acid. the 37th Annual European Association of Urology(EAU) Congress 2022.07

  7. Ishikawa Y, Sho U, Ishihara K, Hirose K, Soma T, Fujiwara M, Kobayashi M, Fan B, Nakamura Y, Uchida Y, Fukuda S, Tanaka H, Yoshida S, Yokoyama M, Matsuoka Y, Fujii Y. Orally administered 5-aminolevulinic acid can cause intraoperative hypotension in patients with bladder cancer undergoing transurethral resection. the 37th Annual European Association of Urology(EAU) Congress 2022.07

  8. Fukuda S, Tanaka H, Tanabe K, Tamiya T, Kobayashi M, Yajima S, Nakamura Y, Fujiwara M, Ishikawa Y, Yamamoto T, Araki S, Yoshida S, Yokoyama M, Matsuoka Y, Otsuka Y, Koga F, Fujii Y. Local recurrence following partial nephrectomy in patients with renal cell carcinoma: a multicenter study. The 117th annual meeting of the American Urological Association 2022.05.13 New Orleans, USA

  9. Kobayashi M, Matsuoka Y, Uehara S, Tanaka Hiroshi, Nakamura Y, Uchida Y, Fukuda S, Tanaka Hajime, Yoshida S, Yokoyama M, Fujii Y. PIRADS score combined with positive core number on MRI-ultrasound fusion targeted prostate biopsy can predict the absence of pathological extraprostatic extension. AUA Annual Meeting 2022.05.13

  10. Takazawa Ryoji, Waseda Yuma, Kobayashi Masaki, Tsujii Toshihiko. ディスポーザブル尿管鏡は大型腎結石患者の治療成績を改善可能である(Disposable ureteroscope can improve the treatment outcomes of patients with large kidney stones). 日本泌尿器科学会総会 2020.12.01

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