徳島大学 教育・研究者情報データベース(EDB)

1. (英) Lan Hai

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2. 西谷 弘

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3. 西原 貞光

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4. 上野 淳二

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5. 髙尾 正一郎([徳島大学.大学院医歯薬学研究部.保健学域.保健科学部門.放射線科学系.医用画像解析学]/[徳島大学.医学部.保健学科.放射線技術科学専攻.診療放射線技術学講座])

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6. 岩本 誠司

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7. 川中 崇([徳島大学.大学院医歯薬学研究部.医学域.先端医学教育研究プロジェクト]/[徳島大学.大学院医歯薬学研究部.医学域.医科学部門.内科系.放射線医学]/[徳島大学.病院.診療科.放射線科.放射線治療科])

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8. (英) MAHMUT Mawlan

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9. (英) QINGGE Si

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(英) Using the MDCT thick slab MinIP method for the follow-up of pulmonary emphysema

(日) MDCT厚板MinIP法を用いた肺気腫の追跡

(英) The purpose of this study was to evaluate the usefulness of thick slab minimum intensity projection (MinIP) as a follow-up method in patients with pulmonary emphysema. This method was used to determine the presence or absence of changes over time in the lung field based on multi-detector-row CT (MDCT) data. Among patients diagnosed with pulmonary emphysema who underwent 16-MDCT (slice thickness, 1 mm) twice at an interval of 6 months or more, 12 patients without changes in the lung field and 14 with clear changes in the lung field were selected as subjects. An image interpretation experiment was performed by five image interpreters. Pulmonary emphysema was followed up using two types of thick slab MinIP (thick slab MinIP 1 and 2) and multi-planar reformation (MPR), and the results of image interpretation were evaluated by receiver operating characteristic (ROC) analysis. In addition, the time required for image interpretation was compared among the three follow-up methods. The area under the ROC curve (Az) was 0.794 for thick slab MinIP 1, 0.778 for the thick slab MinIP 2, and 0.759 for MPR, showing no significant differences among the three methods. Individual differences in each item were significantly more marked for MPR than for thick slab MinIP. The time required for image interpretation was around 18 seconds for thick slab MinIP 1, 11 seconds for thick slab MinIP 2, and approximately 127 seconds for MPR, showing significant differences among the three methods. There were no significant differences in the results of image interpretation regarding the presence or absence of changes in the lung fields between thick slab MinIP and MPR. However, thick slab MinIP showed a shorter image interpretation time and smaller individual differences in the results among image interpreters than MPR, suggesting the usefulness of this method for determining the presence or absence of changes with time in the lung fields of patients with pulmonary emphysema.

1. (英) Follow-Up Studies
2. (英) Humans
3. (英) Multidetector Computed Tomography
4. (英) Pulmonary Emphysema
5. (英) Radiographic Image Interpretation, Computer-Assisted

1. (英) Article.Affiliation: Department of Radiology, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan.

2. (英) Article.PublicationTypeList.PublicationType: Journal Article