A patient with tumefactive multiple sclerosis (MS) initially presented at the age of 87 years; the revised diagnostic criteria from the International Panel on MS (2001) were fulfilled. Late-onset MS and tumefactive demyelinating lesions are discussed. This case suggests that MS can occur at any age. MS should be borne in mind for differential diagnosis if a brain tumor-like lesion with little mass effect and edema is found in an elderly patient.
{"title":"Late-onset tumefactive multiple sclerosis.","authors":"Taizo Takeuchi, Mitsuhiro Ogura, Morio Sato, Nobuyuki Kawai, Hirohiko Tanihata, Isao Takasaka, Hiroki Minamiguchi, Motoki Nakai, Toru Itakura","doi":"10.1007/s11604-008-0273-4","DOIUrl":"https://doi.org/10.1007/s11604-008-0273-4","url":null,"abstract":"<p><p>A patient with tumefactive multiple sclerosis (MS) initially presented at the age of 87 years; the revised diagnostic criteria from the International Panel on MS (2001) were fulfilled. Late-onset MS and tumefactive demyelinating lesions are discussed. This case suggests that MS can occur at any age. MS should be borne in mind for differential diagnosis if a brain tumor-like lesion with little mass effect and edema is found in an elderly patient.</p>","PeriodicalId":49640,"journal":{"name":"Radiation medicine","volume":"26 9","pages":"549-52"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s11604-008-0273-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27858069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose: We have been developing a computer-aided detection (CAD) system for lung nodules on multidetector row computed tomography (MDCT). The scheme for nodule detection in this system is featured by three-dimensional analysis of nodule candidates [corrected] and their surroundings, which is designed to discriminate nodules from blood vessels. The purpose of this study was to evaluate the CAD system.
Materials and methods: MDCT images from 30 patients with lung nodules were read twice, 3 weeks apart by a chest radiologist to detect noncalcified nodules of > or = 4 mm. The first reading was without CAD, and the second reading was with CAD. Based on the reference standard later determined by another chest radiologist, the sensitivity of the former chest radiologist without or with CAD was obtained; the sensitivity and false-positive rate of the system alone were also obtained.
Results: The reference standard consisted of 66 nodules. The sensitivity of the chest radiologist was 77% (51/66) without CAD and 91% (60/66) with CAD, showing a significant improvement. The CAD system alone showed a sensitivity of 79% (52/66) with the false-positive rate of 4.5 per patient.
Conclusion: Although preliminary, these results indicate the efficacy of the CAD system.
{"title":"Computer-aided detection of lung nodules on multidetector row computed tomography using three-dimensional analysis of nodule candidates and their surroundings.","authors":"Sumiaki Matsumoto, Yoshiharu Ohno, Hitoshi Yamagata, Daisuke Takenaka, Kazuro Sugimura","doi":"10.1007/s11604-008-0272-5","DOIUrl":"https://doi.org/10.1007/s11604-008-0272-5","url":null,"abstract":"<p><strong>Purpose: </strong>We have been developing a computer-aided detection (CAD) system for lung nodules on multidetector row computed tomography (MDCT). The scheme for nodule detection in this system is featured by three-dimensional analysis of nodule candidates [corrected] and their surroundings, which is designed to discriminate nodules from blood vessels. The purpose of this study was to evaluate the CAD system.</p><p><strong>Materials and methods: </strong>MDCT images from 30 patients with lung nodules were read twice, 3 weeks apart by a chest radiologist to detect noncalcified nodules of > or = 4 mm. The first reading was without CAD, and the second reading was with CAD. Based on the reference standard later determined by another chest radiologist, the sensitivity of the former chest radiologist without or with CAD was obtained; the sensitivity and false-positive rate of the system alone were also obtained.</p><p><strong>Results: </strong>The reference standard consisted of 66 nodules. The sensitivity of the chest radiologist was 77% (51/66) without CAD and 91% (60/66) with CAD, showing a significant improvement. The CAD system alone showed a sensitivity of 79% (52/66) with the false-positive rate of 4.5 per patient.</p><p><strong>Conclusion: </strong>Although preliminary, these results indicate the efficacy of the CAD system.</p>","PeriodicalId":49640,"journal":{"name":"Radiation medicine","volume":"26 9","pages":"562-9"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s11604-008-0272-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27858072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-10-31DOI: 10.1007/s11604-008-0257-4
H. Ishiyama, Shouko Kotani, T. Satoh, M. Uemae, S. Baba, K. Hayakawa
{"title":"Needle position during 125I seed implantation: accurately recognized by sagittal transrectal ultrasonography","authors":"H. Ishiyama, Shouko Kotani, T. Satoh, M. Uemae, S. Baba, K. Hayakawa","doi":"10.1007/s11604-008-0257-4","DOIUrl":"https://doi.org/10.1007/s11604-008-0257-4","url":null,"abstract":"","PeriodicalId":49640,"journal":{"name":"Radiation medicine","volume":"1 1","pages":"512-515"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85466318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-10-31DOI: 10.1007/s11604-008-0261-8
A. Takeda, T. Enomoto, N. Sanuki, T. Nakajima, Toshiaki Takeda, K. Sayama, E. Kunieda
{"title":"Acute exacerbation of subclinical idiopathic pulmonary fibrosis triggered by hypofractionated stereotactic body radiotherapy in a patient with primary lung cancer and slightly focal honeycombing","authors":"A. Takeda, T. Enomoto, N. Sanuki, T. Nakajima, Toshiaki Takeda, K. Sayama, E. Kunieda","doi":"10.1007/s11604-008-0261-8","DOIUrl":"https://doi.org/10.1007/s11604-008-0261-8","url":null,"abstract":"","PeriodicalId":49640,"journal":{"name":"Radiation medicine","volume":"17 1 1","pages":"504-507"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87087440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-10-31DOI: 10.1007/s11604-008-0265-4
M. Momose, S. Kawakami, T. Koizumi, Kazuo Yoshida, S. Kanda, R. Kondo, M. Kadoya
{"title":"Lymphoscintigraphy using technetium-99m HSA-DTPA with SPECT/CT in chylothorax after childbirth","authors":"M. Momose, S. Kawakami, T. Koizumi, Kazuo Yoshida, S. Kanda, R. Kondo, M. Kadoya","doi":"10.1007/s11604-008-0265-4","DOIUrl":"https://doi.org/10.1007/s11604-008-0265-4","url":null,"abstract":"","PeriodicalId":49640,"journal":{"name":"Radiation medicine","volume":"30 Suppl 2 1","pages":"508-511"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89306473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-10-31DOI: 10.1007/s11604-008-0258-3
Y. Nakata, N. Sato, O. Abe, Shoko Shikakura, K. Arima, Nobuo Furuta, M. Uno, S. Hirai, Y. Masutani, K. Ohtomo, S. Aoki
{"title":"Diffusion abnormality in posterior cingulate fiber tracts in Alzheimer’s disease: tract-specific analysis","authors":"Y. Nakata, N. Sato, O. Abe, Shoko Shikakura, K. Arima, Nobuo Furuta, M. Uno, S. Hirai, Y. Masutani, K. Ohtomo, S. Aoki","doi":"10.1007/s11604-008-0258-3","DOIUrl":"https://doi.org/10.1007/s11604-008-0258-3","url":null,"abstract":"","PeriodicalId":49640,"journal":{"name":"Radiation medicine","volume":"43 1","pages":"466-473"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77739691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-10-31DOI: 10.1007/s11604-008-0264-5
M. Nagahata, Yoshinao Abe, S. Ono, H. Miura, T. Ohata, F. Tsushima, Kohei Morimoto, H. Seino, S. Kakehata, K. Basaki
{"title":"Bolus injection of contrast agents with various iodine concentrations and delivery rates for intracranial three-dimensional CT angiography: evaluation of intracranial arteriovenous contrast using a multidetector-row CT scanner","authors":"M. Nagahata, Yoshinao Abe, S. Ono, H. Miura, T. Ohata, F. Tsushima, Kohei Morimoto, H. Seino, S. Kakehata, K. Basaki","doi":"10.1007/s11604-008-0264-5","DOIUrl":"https://doi.org/10.1007/s11604-008-0264-5","url":null,"abstract":"","PeriodicalId":49640,"journal":{"name":"Radiation medicine","volume":"55 1","pages":"494-498"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85822481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-10-31DOI: 10.1007/s11604-008-0263-6
Asako Azuma, M. Tozaki, Kensuke Ito, E. Fukuma, Tomoko Tanaka, T. O’uchi
{"title":"Ductal carcinoma in situ: correlation between FDG-PET/CT and histopathology","authors":"Asako Azuma, M. Tozaki, Kensuke Ito, E. Fukuma, Tomoko Tanaka, T. O’uchi","doi":"10.1007/s11604-008-0263-6","DOIUrl":"https://doi.org/10.1007/s11604-008-0263-6","url":null,"abstract":"","PeriodicalId":49640,"journal":{"name":"Radiation medicine","volume":"1 1","pages":"488-493"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83323702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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