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Baba A, Matsushima S, Fukuda T, Yamauchi H, Fujioka H, Hasumi J, Yoshimoto S, Shoji T, Kurihara S, Yamamoto Y, Kojima H, Kurokawa R, Kurokawa M, Ota Y, Ojiri H. Improved assessment of middle ear recurrent/residual cholesteatomas using temporal subtraction CT. Jpn J Radiol 2022; 40:271-278. [PMID: 34689305 PMCID: PMC8891190 DOI: 10.1007/s11604-021-01209-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/10/2021] [Indexed: 11/11/2022]
Abstract
PURPOSE The purpose of this study was to investigate the usefulness of temporal subtraction CT (TSCT) of temporal bone CT for the detection of postoperative recurrent/residual cholesteatoma of the middle ear. METHODS Thirty-two consecutive patients with surgically proven postoperative recurrent/residual cholesteatoma and 14 consecutive patients without recurrent/residual lesion matched the selection criteria and were retrospectively evaluated. TSCT imaging was generated with the use of serial postoperative CT. Two experienced radiologists and two residents evaluated the presence of bone erosive change by comparison serial CT studies, and CT and TSCT. The detection rate of bone erosive change, sensitivity and specificity of the recurrence/residual lesions, and reading time for each reader were evaluated. RESULTS TSCT + CT significantly improved the detection of bone erosive changes compared to CT-only evaluation (17.4-41.3% vs. 37.0-58.7%, p = 0.008-0.046). The mean sensitivity and specificity of TSCT + CT for experienced radiologists were 0.77 and 1.00, and 0.52 and 0.97 without TSCT. The mean sensitivity and specificity of TSCT + CT for residents were 0.64 and 1.00, and 0.41 and 1.00 without TSCT. Sensitivity showed an increase in all readers. The use of TSCT significantly reduced the reading time per case in all readers (p < 0.001). CONCLUSION TSCT improves the depiction of newly occurring progressive bone erosive changes, and detection sensitivity and reading time in postoperative recurrence/residual cholesteatoma of middle ear.
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Affiliation(s)
- Akira Baba
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan.
- Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E. Medical Center Dr., Ann Arbor, MI, 48109, USA.
| | - Satoshi Matsushima
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Takeshi Fukuda
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Hideomi Yamauchi
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Hiroaki Fujioka
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Jun Hasumi
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Shohei Yoshimoto
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Tomokazu Shoji
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Sho Kurihara
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, Miyazaki, 889-1692, Japan
| | - Yutaka Yamamoto
- Department of Otorhinolaryngology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Hiromi Kojima
- Department of Otorhinolaryngology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Ryo Kurokawa
- Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E. Medical Center Dr., Ann Arbor, MI, 48109, USA
| | - Mariko Kurokawa
- Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E. Medical Center Dr., Ann Arbor, MI, 48109, USA
| | - Yoshiaki Ota
- Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 E. Medical Center Dr., Ann Arbor, MI, 48109, USA
| | - Hiroya Ojiri
- Department of Radiology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
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Sakamoto R, Yakami M, Fujimoto K, Nakagomi K, Kubo T, Emoto Y, Akasaka T, Aoyama G, Yamamoto H, Miller MI, Mori S, Togashi K. Temporal Subtraction of Serial CT Images with Large Deformation Diffeomorphic Metric Mapping in the Identification of Bone Metastases. Radiology 2017; 285:629-639. [PMID: 28678671 DOI: 10.1148/radiol.2017161942] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Purpose To determine the improvement of radiologist efficiency and performance in the detection of bone metastases at serial follow-up computed tomography (CT) by using a temporal subtraction (TS) technique based on an advanced nonrigid image registration algorithm. Materials and Methods This retrospective study was approved by the institutional review board, and informed consent was waived. CT image pairs (previous and current scans of the torso) in 60 patients with cancer (primary lesion location: prostate, n = 14; breast, n = 16; lung, n = 20; liver, n = 10) were included. These consisted of 30 positive cases with a total of 65 bone metastases depicted only on current images and confirmed by two radiologists who had access to additional imaging examinations and clinical courses and 30 matched negative control cases (no bone metastases). Previous CT images were semiautomatically registered to current CT images by the algorithm, and TS images were created. Seven radiologists independently interpreted CT image pairs to identify newly developed bone metastases without and with TS images with an interval of at least 30 days. Jackknife free-response receiver operating characteristics (JAFROC) analysis was conducted to assess observer performance. Reading time was recorded, and usefulness was evaluated with subjective scores of 1-5, with 5 being extremely useful and 1 being useless. Significance of these values was tested with the Wilcoxon signed-rank test. Results The subtraction images depicted various types of bone metastases (osteolytic, n = 28; osteoblastic, n = 26; mixed osteolytic and blastic, n = 11) as temporal changes. The average reading time was significantly reduced (384.3 vs 286.8 seconds; Wilcoxon signed rank test, P = .028). The average figure-of-merit value increased from 0.758 to 0.835; however, this difference was not significant (JAFROC analysis, P = .092). The subjective usefulness survey response showed a median score of 5 for use of the technique (range, 3-5). Conclusion TS images obtained from serial CT scans using nonrigid registration successfully depicted newly developed bone metastases and showed promise for their efficient detection. © RSNA, 2017 Online supplemental material is available for this article.
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Affiliation(s)
- Ryo Sakamoto
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Masahiro Yakami
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Koji Fujimoto
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Keita Nakagomi
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Takeshi Kubo
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Yutaka Emoto
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Thai Akasaka
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Gakuto Aoyama
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Hiroyuki Yamamoto
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Michael I Miller
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Susumu Mori
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
| | - Kaori Togashi
- From the Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan (R.S., M.Y., K.F., T.K., T.A., K.T.); Advanced Information & Real-world Technology Development Center 1, Canon, Kyoto, Japan (K.N., G.A., H.Y.); Clinical Research Center for Medical Equipment Development, Kyoto University Hospital, Shogoin, Sakyo-ku, Kyoto, Japan (K.N., G.A., H.Y.); Department of Medical Science, Kyoto College of Medical Science, Oyama-Higashimachi, Sonobe-cho, Nantan, Kyoto, Japan (Y.E.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Md (M.I.M.); Center for Imaging Science, Johns Hopkins University, Baltimore, Md (M.I.M.); Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Md (S.M.); and F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Johns Hopkins University, Baltimore, Md (S.M.)
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