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JaLCDOI 10.18926/AMO/65152
FullText URL 77_2_209.pdf
Author Sakamoto, Masaki| Teraishi, Fuminori| Shigeyasu Kunitoshi| Kagawa, Shunsuke| Fujiwara, Toshiyoshi|
Abstract A 70-year-old male with anal pain and fever was diagnosed with rectal cancer perforation and abscess in the right gluteus maximus (GM) muscle. He underwent a transverse colon colostomy followed by preoperative capecitabine+oxaliplatin. Some local control was achieved but a residual abscess was observed in the right GM muscle. To secure circumferential resection margin by tumor reduction, he received chemoradiotherapy as total neoadjuvant therapy (TNT) and underwent laparoscopic abdominoperineal resection, D3 lymph node dissection, combined coccyx resection, and partial resection of the right GM muscle. The skin defect and pelvic dead space were filled with a right lateral vastus lateral great muscle flap. Histopathologically, the resected specimen showed no tumor cells in the primary tumor or lymph nodes, indicating a pathological complete response (pCR). This case suggests that TNT might improve the R0 resection and pCR rates and overall survival.
Keywords locally advanced rectal cancer total neoadjuvant therapy lateral vastus lateral great muscle flap
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2023-04
Volume volume77
Issue issue2
Publisher Okayama University Medical School
Start Page 209
End Page 213
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 37094960
Web of Science KeyUT 000982563800003
JaLCDOI 10.18926/AMO/65144
FullText URL 77_2_147.pdf
Author Arias, Zulema| Haines, Stephanie| Yamamoto, Tadashi| Hatanaka, Kazu| Yamashiro, Keisuke| Sonoi, Norihiro| Takashiba, Shogo|
Abstract The curriculum at the Department of Pathophysiology in the Periodontal Sciences program at Okayama University includes normative preclinical training (NPT) using phantoms. NPT is given to the whole class of 5 th year students divided in groups of 8 students/instructor. In 2019, an innovative personalized preclinical training (PPT) pilot study was implemented for this group of students whereby two students, each with their own dental unit, were coached by one instructor. The main topics covered were dental ergonomics and endodontics. We aimed to evaluate the effectiveness of PPT in dental ergonomics and endodontics toward increasing the knowledge and future clinical skills of students who had already undergone NPT. A test on endodontics was taken before and after PPT. A questionnaire was completed to assess their perception of improvement regarding the above-mentioned topics. Test scores and questionnaire results both showed that the students’ level of knowledge and awareness of future clinical skills was significantly higher after PPT. This pilot study demonstrated that PPT increased the students’ knowledge and future clinical skills. As preclinical training forms the foundation for clinical practice, investment in future research regarding this personalized approach is likely to enhance students’ understanding and clinical performance.
Keywords preclinical personalized education dental ergonomics endodontics clinical skills improvement undergraduate students
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2023-04
Volume volume77
Issue issue2
Publisher Okayama University Medical School
Start Page 147
End Page 159
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 37094952
Web of Science KeyUT 000982503800004
FullText URL fulltext.pdf
Author Mitoma, Tomohiro| Maki, Jota| Ooba, Hikaru| Eto, Eriko| Takahashi, Kasumi| Kondo, Tsunemasa| Ikeda, Tomohiro| Sakamoto, Yoko| Mitsuhashi, Toshiharu| Masuyama, Hisashi|
Keywords Oestrogen replacement therapy Knee osteoarthritis Muscle resistance exercise Sarcopenia Physical performance
Published Date 2023-02-18
Publication Title BMC Geriatrics
Volume volume23
Issue issue1
Publisher BMC
Start Page 104
ISSN 1471-2318
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2023.
File Version publisher
PubMed ID 36800940
DOI 10.1186/s12877-023-03828-y
Web of Science KeyUT 000936860000001
Related Url isVersionOf https://doi.org/10.1186/s12877-023-03828-y
FullText URL fulltext.pdf
Author Kawanishi, Shiho| Kojima, Keiichi| Shibukawa, Atsushi| Sakamoto, Masayuki| Sudo, Yuki|
Published Date 2023-01-25
Publication Title ACS Omega
Volume volume8
Publisher American Chemical Society
Start Page 4826
End Page 4834
ISSN 2470-1343
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2023 The Authors.
File Version publisher
PubMed ID 36777568
DOI 10.1021/acsomega.2c06980
Web of Science KeyUT 000926216100001
Related Url isVersionOf https://doi.org/10.1021/acsomega.2c06980
FullText URL fulltext.pdf
Author Katayama, Yukitoshi| Tsukada, Takehiro| Hyodo, Susumu| Sakamoto, Hirotaka| Sakamoto, Tatsuya|
Published Date 2022-12-07
Publication Title Plos One
Volume volume17
Issue issue12
Publisher Public Library Science
Start Page e0277968
ISSN 1932-6203
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2022 Katayama et al.
File Version publisher
PubMed ID 36477197
DOI 10.1371/journal.pone.0277968
Web of Science KeyUT 000925063300030
Related Url isVersionOf https://doi.org/10.1371/journal.pone.0277968
JaLCDOI 10.18926/AMO/64362
FullText URL 77_1_57.pdf
Author Katsumata, Ryo| Manabe, Noriaki| Monobe, Yasumasa| Ayaki, Maki| Suehiro, Mitsuhiko| Fujita, Minoru| Kamada, Tomoari| Kawamoto, Hirofumi| Haruma, Ken|
Abstract Melanosis coli (MC) is an acquired colorectal disorder visualized as colonic mucosa pigmentation. Disease severity is confirmed based on MC depth, shape, and coloration, although the clinical course is not fully understood. This study sought to clarify characteristics of MC development and disappearance and to investigate its clinical course and severity. Contributors to MC grade progression were explored. This study reviewed MC cases discovered via colonoscopy at a single institution over a 10-year period. Of all 216 MC cases, 17 developing and 10 disappearing cases were detected. Anthranoid laxative use was a key factor: 29.4% of the developing cases had used such agents before the initial MC diagnosis, whereas 40% of disappearing cases had discontinued anthranoids prior to detection of MC disappearance. Among 70 grade I cases, progression to grade II occurred in 16 cases during a mean follow-up of 3.67±2.1 years (rate of progression=22.8%). Males more commonly showed progressive than stable grade I cases, and the probability of progression was higher for male than for female cases. An association between anthranoid administration and MC presence was presumed, and grade I MC was found to progress in severity over 5 years.
Keywords melanosis sex characteristics laxatives colorectal neoplasms colonoscopy
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2023-02
Volume volume77
Issue issue1
Publisher Okayama University Medical School
Start Page 57
End Page 64
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2023 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36849146
Web of Science KeyUT 000952992100003
FullText URL fulltext.pdf
Author Tokumasu, Kazuki| Nishimura, Yoshito| Sakamoto, Yoko| Obika, Mikako| Kataoka, Hitomi| Otsuka, Fumio|
Keywords COVID-19 medical student medical education in-person communication online communication stress perception
Published Date 2023-01-15
Publication Title International Journal of Environmental Research and Public Health
Volume volume20
Issue issue2
Publisher MDPI
Start Page 1579
ISSN 1660-4601
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2023 by the authors.
File Version publisher
PubMed ID 36674333
DOI 10.3390/ijerph20021579
Web of Science KeyUT 000915112800001
Related Url isVersionOf https://doi.org/10.3390/ijerph20021579
FullText URL fulltext.pdf
Author Osinde, Cyprian| Sakamoto, Wataru| Kajiya-Kanegae, Hiromi| Sobhy, Islam S.| Tugume, Arthur K.| Nsubuga, Anthony M.| Galis, Ivan|
Keywords Quantitative trait locus (QTL) stem borer herbivory BTx623 and NOG recombinant inbred lines (RILs) sorghum
Published Date 2023-12-31
Publication Title Journal Of Plant Interactions
Volume volume18
Issue issue1
Publisher Taylor & Francis Ltd
Start Page 2153182
ISSN 1742-9145
NCID AA11980303
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2022 The Author(s).
File Version publisher
DOI 10.1080/17429145.2022.2153182
Web of Science KeyUT 000905581600001
Related Url isVersionOf https://doi.org/10.1080/17429145.2022.2153182
Title Alternative The beginning date of wet rice cultivation at the of Okayama University site: Tree ring oxygen isotope dating and radiocarbon 14 age of weirs from the mid-I stage of the Yayoi period
JaLCDOI 10.18926/64199
FullText URL jdc_002_018.pdf
Author FUJIO, Shinichiro| SAKAMOTO, Minoru| SANO, Masaki|
Abstract This article clarifies the date when paddy field rice cultivation began at the archaeological site located within the Okayama University campus. The analysis used tree ring oxygen isotope dating and radiocarbon dating. When the oxygen isotope ratios of wood used in paddy weirs detected in the 23rd excavation season were examined, peaks could be seen in two places: in the 10th century BC and the 6th century BC. Since the weir was accompanied by mid-I stage Yayoi pottery, which was dated to the 6th century BC using radiocarbon dating, tree ring dating determined that the weir was made from wood cut down soon after 540 BC. Therefore, it was reaffirmed that one of the points of the mid-I stage can be dated to the middle of the 6th century BC.
Next is the age of the early-I stage, when paddy field rice cultivation began on the Okayama Plain. In the Tsuruba area of the Nishikawazu archaeological site in Shimane Prefecture, where paddy field rice cultivation is thought to have begun at the same time as on the Okayama Plain, tree ring oxygen isotope dating of wood accompanied by early-I stage pottery has been reported. The date of 649 BC date means that one of the earliest stages of the early-I period dates to the middle of the 7th century BC. Therefore, we reaffirmed the view that paddy rice cultivation in the Chugoku region, such as Okayama and Shimane, began in the 7th century BC.
It also became clear that the beginning of paddy field rice cultivation in the Chugoku region occurred at a time when the climate that had been the base of cold in the 10th century BC gradually warmed and the relatively humid climate began to turn to arid.
Keywords 土器付着炭化物:carbides adhering to pottery 酸素同位体比年輪年代法:tree ring oxygen isotope dating 炭素14年代法:radiocarbon dating 岡山大学構内遺跡:the Okayama University site 弥生前期:the early Yayoi period 水田稲作:wet rice cultivation 堰:weirs
Amo Type 研究ノート (Research note)
Publication Title Dynamics of Civilizations
Published Date 2023-03-25
Volume volume2
Publisher 岡山大学文明動態学研究所
Start Page 18
End Page 31
ISSN 2436-8326
Content Type Journal Article
language Japanese
Copyright Holders © 2023 by RIDC
File Version publisher
FullText URL fulltext.pdf
Author Daimon, Masahiro| Katsumura, Takafumi| Sakamoto, Hirotaka| Ansai, Satoshi| Takeuchi, Hideaki|
Published Date 2022-11-16
Publication Title Scientific Reports
Volume volume12
Issue issue1
Publisher Nature Portfolio
Start Page 19665
ISSN 2045-2322
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2022
File Version publisher
PubMed ID 36385126
DOI 10.1038/s41598-022-23871-w
Web of Science KeyUT 000884825100096
Related Url isVersionOf https://doi.org/10.1038/s41598-022-23871-w
FullText URL fulltext20221117-1.pdf
Author Katayama, Yukitoshi| Miura, Ayane| Sakamoto, Tatsuya| Takanami, Keiko| Sakamoto, Hirotaka|
Keywords itchy eyes histamine gastrin-releasing peptide receptor footedness
Published Date 2022-10-19
Publication Title Proceedings of the Royal Society B: Biological Sciences
Volume volume289
Issue issue1985
Publisher The Royal Society
Start Page 20221126
ISSN 0962-8452
NCID AA00786976
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2022 The Author(s)
File Version author
PubMed ID 36259204
DOI 10.1098/rspb.2022.1126
Web of Science KeyUT 000872392900003
Related Url isVersionOf https://doi.org/10.1098/rspb.2022.1126
JaLCDOI 10.18926/AMO/64127
FullText URL 76_6_749.pdf
Author Takami, Masanari| Yukawa, Yasutsugu| Noda, Yusuke| Yoshida, Munehito| Yamada, Hiroshi|
Abstract We provide the first report of successful salvage surgery for a post-C1 laminectomy symptomatic recurrence of a retro-odontoid pseudotumor (ROP) that caused myelopathy. The 72-year-old Japanese woman presented with an ROP causing symptomatic cervical myelopathy. With ultrasonography support, we performed the enucleation of the ROP via a transdural approach and fusion surgery for the recurrence of the mass. At the final observation 2-year post-surgery, MRI demonstrated the mass’s regression and spinal cord decompression, and the patient’s symptoms had improved. Our strategy is an effective option for a symptomatic recurrence of ROP.
Keywords recurrent retro-odontoid pseudotumor salvage surgery transdural resection C1 laminectomy ultra-sonography
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2022-12
Volume volume76
Issue issue6
Publisher Okayama University Medical School
Start Page 749
End Page 754
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2022 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36549779
Web of Science KeyUT 000905195100017
JaLCDOI 10.18926/AMO/64126
FullText URL 76_6_743.pdf
Author Tanaka, Masato| Suthar, Hardik| Desai, Dhvanit| Yamauchi, Taro| Arataki, Shinya| Fujiwara, Yoshihiro| Uotani, Koji| Oda, Yoshiaki| Misawa, Haruo|
Abstract We describe a floating technique via a posterolateral approach with intraoperative O-arm navigation to facilitate decompression of the spinal cord in thoracic myelopathy due to severe ossification of the posterior longitudinal ligament (OPLL). A 62-year-old man with myelopathy due to thoracic OPLL had left-leg muscle weakness, urinary disturbance, and spastic gait. Bilateral leg pain and gait disturbance had persisted for 2 years. He was successfully treated by the posterolateral OPLL floating procedure and posterior pedicle fixation under O-arm navigation. At a 2-year follow-up, manual muscle testing results and sensory function of the left leg had recovered fully. His cervical Japanese Orthopedic Association score had improved from 5/12 to 11/12. The novel intraoperative O-arm navigation-guided posterolateral floating procedure for thoracic OPLL is effective for achieving precise decompression and strong fixation with a posterior approach only and can provide an excellent result for severe thoracic OPLL without the risk of adverse events from intraoperative radiation.
Keywords ossification of the posterior longitudinal ligament floating method navigation surgery C-arm free
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2022-12
Volume volume76
Issue issue6
Publisher Okayama University Medical School
Start Page 743
End Page 748
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2022 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36549778
Web of Science KeyUT 000905195100016
JaLCDOI 10.18926/AMO/64122
FullText URL 76_6_715.pdf
Author Mohammed Zahedul Islam Nizami| Gorduysus, Melahat| Shinoda-Ito, Yuki| Yamamoto, Tadashi| Nishina, Yuta| Takashiba, Shogo| Arias, Zulema|
Abstract The failure of endodontic treatment is directly associated with microbial infection in the root canal or periapical areas. An endodontic sealer that is both bactericidal and biocompatible is essential for the success of root canal treatments. This is one of the vital issues yet to be solved in clinical dental practice. This in vitro study assessed the effectiveness of graphene oxide (GO) composites GO-CaF2 and GO-Ag-CaF2 as endodontic sealer materials. Dentin slices were coated with either the GO-based composites or commonly used root canal sealers (non-eugenol zinc oxide sealer). The coated slices were treated in 0.9% NaCl, phosphate-buffered saline (PBS), and simulated body fluid (SBF) at 37˚C for 24 hours to compare their sealing effect on the dentin surface. In addition, the radiopacity of these composites was examined to assess whether they complied with the requirements of a sealer for good radiographic visualization. Scanning electron microscopy showed the significant sealing capability of the composites as coating materials. Radiographic images confirmed their radiopacity. Mineral deposition indicated their bioactivity, especially of GO-Ag-CaF2, and thus it is potential for regenerative application. They were both previously shown to be bactericidal to oral microbes and cytocompatible with host cells. With such a unique assemblage of critical properties, these GO-based composites show promise as endodontic sealers for protection against reinfection in root canal treatment and enhanced success in endodontic treatment overall.
Keywords bioactive sealer graphene oxide mineral deposition antimicrobial activity radiopacity
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2022-12
Volume volume76
Issue issue6
Publisher Okayama University Medical School
Start Page 715
End Page 721
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2022 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36549774
Web of Science KeyUT 000905195100012
JaLCDOI 10.18926/AMO/64120
FullText URL 76_6_695.pdf
Author Onishi, Hideki| Nouso, Kazuhiro| Takaki, Akinobu| Oyama, Atsushi| Adachi, Takuya| Wada, Nozomu| Takeuchi, Yasuto| Shiraha, Hidenori| Okada, Hiroyuki|
Abstract This study sought to identify factors that are predictive of a therapeutic response to hepatic arterial infusion chemotherapy (HAIC) by focusing on the number of prior transcatheter arterial chemoembolization (TACE) sessions. To determine the parameters predicting a good response to HAIC, we retrospectively analyzed 170 patients with hepatocellular carcinoma (HCC) who received HAIC regimens comprising low-dose cisplatin combined with 5-fluorouracil (LFP) or cisplatin (CDDP) for the first time. In both the LFP and CDDP regimens, the response rates were significantly lower in patients with three or more prior TACE sessions than in those with two or fewer prior TACE sessions (LFP 57% versus 28%; p=0.01, CDDP 27% versus 6%; p=0.01). Multivariable logistic regression analysis revealed that the number of prior TACE sessions (≥ 3) was significantly associated with non-responder status (odds ratio 4.17, 95% Confidence Interval (CI) 1.76-9.86) in addition to the HAIC regimen. Multivariable analysis using the Cox proportional hazards model revealed that a larger number of prior TACE sessions (≥ 3) was a significant risk factor for survival (hazard ratio 1.60, 95% CI 1.12-2.29) in addition to Child-Pugh class, serum alpha-fetoprotein concentration, and maximum diameter of HCC. HCC patients who receive fewer prior TACE sessions (≤ 2) were found to be better responders to HAIC.
Keywords hepatic arterial infusion chemotherapy hepatocellular carcinoma refractory transcatheter arterial chemoembolization
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2022-12
Volume volume76
Issue issue6
Publisher Okayama University Medical School
Start Page 695
End Page 703
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2022 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36549772
Web of Science KeyUT 000905195100010
JaLCDOI 10.18926/AMO/64118
FullText URL 76_6_679.pdf
Author Asagi, Akinori| Sakaguchi, Chihiro| Nadano, Seijin| Nishina, Tomohiro| Hamamoto, Yasushi| Kataoka, Masaaki| Yamashita, Natsumi| Tanimizu, Masahito| Hyodo, Ichinosuke|
Abstract Chemotherapy is insufficient to treat macroscopic vascular invasion (MVI) of hepatocellular carcinoma (HCC). We retrospectively investigated the treatment outcomes of patients who underwent three-dimensional conformal radiotherapy (3D-CRT) for HCC MVI and analyzed prognostic factors by multivariate analysis using a Cox proportional hazard model. Sixty-five patients were studied. MVI sites were the portal vein (n=48 patients), portal and hepatic veins (n=8), and hepatic vein (n=9). The median irradiation dose was 50 Gy. The median survival time (MST) was 7.5 months. Performance status 2 or 3, modified albumin-bilirubin grade 2b or 3, and massive/diffuse type were poor prognostic factors. Nineteen patients (29%) with a treatment effect of 3 or 4 (≥ 50% of tumor necrosis or regression) at the irradiation sites according to the Response Evaluation Criteria in Cancer of the Liver showed longer survival than those with an effect of 1 or 2 (MST 18.7 vs. 5.9 months, p<0.001). No treatment-related death occurred. The hepatic function reserve was preserved in more than 70% of patients. 3D-CRT controlled HCC MVI safely and was suggested to be a good treatment option.
Keywords hepatocellular carcinoma macroscopic vascular invasion portal vein tumor thrombosis hepatic vein tumor thrombosis three-dimensional conformal radiotherapy
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2022-12
Volume volume76
Issue issue6
Publisher Okayama University Medical School
Start Page 679
End Page 688
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2022 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36549770
Web of Science KeyUT 000905195100008
FullText URL K0006684_abstract_review.pdf K0006684_fulltext.pdf K0006684_summary.pdf
Author HASHIMOTO, Nozomu|
Published Date 2022-09-22
Content Type Thesis or Dissertation
Grant Number 甲第6684号
Granted Date 2022-09-22
Thesis Type Doctor of Philosophy in Medical Science
Grantor 岡山大学
language English
Copyright Holders © 2022 Elsevier B.V.
JaLCDOI 10.18926/AMO/64044
FullText URL 76_5_609.pdf
Author Matsumoto, Ken| Fujishita, Keigo| Matsuda, Masayuki| Oka, Satoshi| Fujisawa, Yuka| Imai, Toshi| Machida, Takuya|
Abstract A 69-year-old Japanese man with acute leukemia received post-transplant cyclophosphamide-based haploidentical stem cell transplantation (PTCY-haplo-SCT) but was readmitted with dyspnea and ground-glass-opacities of the lungs. Bronchoscopy showed inflammatory changes with no signs of infection. He received steroids but required intubation as his condition deteriorated. In addition to antithymocyte globulin and cyclophosphamide, we administered ruxolitinib but failed to save him. Autopsy findings revealed fibrotic nonspecific interstitial pneumonia (NSIP) without evidence of organizing pneumonia or infection. Thus, we diagnosed idiopathic pneumonia syndrome (IPS). As far as our knowledge, this is the first case of IPS with NSIP histology after PTCY-haplo-SCT.
Keywords idiopathic pneumonia syndrome ruxolitinib post-transplant cyclophosphamide-based haploidentical stem cell transplantation nonspecific interstitial pneumonia
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2022-10
Volume volume76
Issue issue5
Publisher Okayama University Medical School
Start Page 609
End Page 615
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2022 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36352810
Web of Science KeyUT 000884907100016
JaLCDOI 10.18926/AMO/64040
FullText URL 76_5_585.pdf
Author Choshi, Haruki| Watanabe, Mototsugu| Furukawa, Shinichi| Ujike, Hiroyuki| Kataoka, Kazuhiko|
Abstract Pulmonary metastatic resection is a standard therapy for renal cell carcinoma (RCC). Although patients with pulmonary metastases who do not undergo any treatment have poor prognoses, it has been reported that resection for pulmonary metastases yields good clinical outcomes. We investigated the prognoses of the 10 Japanese patients (eight males, two females) who underwent a surgical resection of pulmonary metastasectomy from RCC at our institution between April 1, 2012 and March 31, 2020 and analyzed the prognostic factors. We determined the prognoses and calculated the 5-year overall survival (OS) and disease-free survival (DFS) rates. To identify prognostic factors, we compared the median DFS duration for each factor. Elderly patients (median age, 75.5 years) were more predominant compared to previous studies, and all 10 patients underwent a complete resection. The 5-year DFS rate was 30.5% (95%CI: 0.045-0.63) and the 5-year OS rate was 80% (95%CI: 0.20-0.97). The following factors were associated with better prognosis: female, disease-free interval≥36 months, and metastases size<12 mm. These results indicate that complete resection for pulmonary metastases from RCC resulted in good clinical outcomes, particularly for patients with better prognostic factors.
Keywords renal cell carcinoma pulmonary metastasis complete resection
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2022-10
Volume volume76
Issue issue5
Publisher Okayama University Medical School
Start Page 585
End Page 591
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2022 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36352806
Web of Science KeyUT 000884907100012
JaLCDOI 10.18926/AMO/64031
FullText URL 76_5_511.pdf
Author Tomita, Hayato| Kuramochi, Kenji| Fujikawa, Atsuko| Ikeda, Hirotaka| Komita, Midori| Kurihara, Yoshiko| Kobayashi, Yasuyuki| Mimura, Hidefumi|
Abstract Iterative reconstruction (IR) improves image quality compared with filtered back projection (FBP). This study investigated the usefulness of model-based IR (forward-projected model-based iterative reconstruction solution [FIRST]) in comparison with FBP and hybrid IR (adaptive iterative dose reduction three-dimensional processing [AIDR 3D]) in low-dose paranasal CT. Twenty-four patients with paranasal sinusitis who underwent standard-dose CT (120 kV) and low-dose CT (100 kV) scanning before and after medical treatment were enrolled. Standard-dose CT scans were reconstructed with FBP (FBP120), and low-dose CT scans with FBP (FBP100), AIDR 3D, and FIRST. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) in three anatomical structures and effective doses were compared using Mann–Whitney U test. Two radiologists independently evaluated the visibility of 16 anatomical structures, overall image quality, and artifacts. Effective doses in lowdose CT were significantly reduced compared with those in standard-dose CT (0.24 vs 0.43 mSv, p<0.001). FIRST achieved significantly higher SNR (p<0.01, respectively) and CNR (p<0.001, respectively) of evaluated structures and significant improvement in overall image quality (p<0.001), artifacts (p<0.001), and visibility related to muscles (p<0.05) compared to FBP120, FBP100, and AIDR 3D. FIRST allowed radiation-dose reduction, while maintaining objective and subjective image quality in low-dose paranasal CT.
Keywords paranasal sinuses iterative reconstruction dose reduction low dose
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2022-10
Volume volume76
Issue issue5
Publisher Okayama University Medical School
Start Page 511
End Page 517
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2022 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 36352797
Web of Science KeyUT 000884907100003