7. 33歳女性:胸膜直下の
区域性すりガラス陰影
Unenhanced CT images in a 33-year-old woman. A, Image shows multiple ground-glass opacities in bilateral lungs. Ground-glass
opacities are seen in the posterior segment of right upper lobe and apical posterior segment of left superior lobe. B, Image obtained
3 days after follow-up shows progressive ground-glass opacities in the posterior segment of right upper lobe and apical posterior
segment of left superior lobe. The bilateralism of the peripheral lung opacities, without subpleural sparing, are common CT findings of
the 2019 novel coronavirus pneumonia.
初診時 3日後増悪時
Lei J, Li J, Li X, Qi X. CT Imaging of the 2019 Novel Coronavirus
(2019-nCoV) Pneumonia. Radiology. 2020 Jan 31.
当院で診療した2人の画像に比較的似ています
8. COVID-19
21例のCT所見
• 男性13人,女性8人
• 年齢29-77歳;平均51歳
• 3人(14%)でCT所見正常
• 16人(76%)で両側肺病変
Chung M, Bernheim A, Mei X, Zhang N, Huang M, Zeng X, et al. CT Imaging
Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020 Feb 4.
10. 陰影の分布とパターン
円形 (rounded opacities)
線状 (linear opacities)
crazy-paving pattern
末梢分布 (peripheral distribution)
空洞 (cavitation)
7 (33%)
3 (14%)
4 (19%)
7 (33%)
0 (0%)
その他の所見
明瞭な肺結節 (discrete pulmonary nodules)
胸水
リンパ節腫脹
肺気腫
肺線維症
0 (0%)
0 (0%)
0 (0%)
0 (0%)
0 (0%)
Chung M, Bernheim A, Mei X, Zhang N, Huang M, Zeng X, et al. CT Imaging
Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020 Feb 4.
11. 21人中8人が
フォローアップCTを撮影
• 平均2.5日(1-4日)後に撮影
• 初回正常だった1人はフォローアップでも変化なし
• すべて改善所見はなし
• 5人(63%)は軽度増悪,2人(25%)は中等度増悪,重
度の悪化はなし
• 初回正常だった1人(全部で8人ではなく9人?)
→3日後再検で新規の末梢性すりガラス陰影が出現
Chung M, Bernheim A, Mei X, Zhang N, Huang M, Zeng X, et al. CT Imaging
Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020 Feb 4.
12. Figure 1. Images in a 29-year-old man with unknown exposure history who presented with fever and cough ultimately
requiring admission to intensive care unit. (a) Axial thin-section unenhanced CT scan shows diffuse bilateral confluent and
patchy ground-glass (white arrows) and consolidative (black arrows) pulmonary opacities. (b) Axial unenhanced image
shows that the disease in the right middle and lower lobes has a striking peripheral distribution (arrows).
曝露歴不明の29歳男性,
発熱,咳で受診し,最終的にICUへ入室.
Chung M, Bernheim A, Mei X, Zhang N, Huang M, Zeng X, et al. CT Imaging
Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020 Feb 4.
13. Figure 2. Image in a 36-year-old man with history of recent travel to Wuhan
who presented with fever, fatigue, and myalgias. Coronal thin-section unenhanced
CT image shows ground-glass opacities with a rounded morphology in both upper
lobes (arrows).
武漢渡航歴のある36歳男性,発熱,倦怠感,筋肉痛で受診.
Chung M, Bernheim A, Mei X, Zhang N, Huang M, Zeng X, et al. CT Imaging
Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020 Feb 4.
14. Figure 3. Image in a 66-year-old woman with history of re-
cent travel to Wuhan who presented with fever and productive
cough. Axial thin-section collimated unenhanced CT image shows
a crazy-paving pattern, as manifested by right lower lobe ground-
glass opacification and interlobular septal thickening (arrow) with
intralobular lines.
武漢渡航歴のある
66歳女性,
発熱,咳,痰で受診.
Chung M, Bernheim A, Mei X, Zhang N, Huang M, Zeng X, et al. CT Imaging
Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020 Feb 4.
15. Figure 4. Image in a 69-year-old man with history of recent travel to Wuhan
who presented with fever. Axial thin-section unenhanced CT scan shows ground-
glass opacities in the lower lobes with a pronounced peripheral distribution (arrows).
武漢渡航歴のある69歳男性,発熱で受診.
Chung M, Bernheim A, Mei X, Zhang N, Huang M, Zeng X, et al. CT Imaging
Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020 Feb 4.
16. Figure 5. Images in a 43-year-old woman with a history of travel to Wuhan who presented with
fever. (a) Axial thin-section unenhanced CT image obtained January 18, 2020, shows normal lung.
(b) Follow-up CT image obtained January 21, 2020, shows a new solitary, rounded, peripheral
ground-glass lesion in the right lower lobe (arrow).
武漢渡航歴のある43歳女性,発熱で受診.
(a) 初診時正常,(b) 3日後新規の末梢性すりガラス陰影が出現
当院で診療した2人はこのbの画像に非常によく似ていました
Chung M, Bernheim A, Mei X, Zhang N, Huang M, Zeng X, et al. CT Imaging
Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020 Feb 4.
18. ress
Figure 2: Chest CT imaging of patient1.A-D, CT images show bilateral multifocal GGOs and
mixed GGO and consolidation lesions. Traction bronchiectasis(fat arrow) and vascular
enlargement are also presented (thin arrow).
Xie X, Zhong Z, Zhao W, Zheng C, Wang F, Liu J. Chest CT for Typical 2019-nCoV
Pneumonia: Relationship to Negative RT-PCR Testing. Radiology. 2020 Feb 12.
19. ress
Figure 3: Chest CT imaging of patient 2. A-D, CT images showed multi-focal GGO and mixed
consolidation that most appeared at peripheral area of both lungs. The CT involvement score was
11.
Xie X, Zhong Z, Zhao W, Zheng C, Wang F, Liu J. Chest CT for Typical 2019-nCoV
Pneumonia: Relationship to Negative RT-PCR Testing. Radiology. 2020 Feb 12.
20. ress
Figure 4: Chest CT imaging of patient 3. A-D, CT images showed bilateral subpleural bandlike
areas of GGO compatible with viral pneumonia.
Xie X, Zhong Z, Zhao W, Zheng C, Wang F, Liu J. Chest CT for Typical 2019-nCoV
Pneumonia: Relationship to Negative RT-PCR Testing. Radiology. 2020 Feb 12.
21. 40歳男性,発症後15日目
Huang C, Wang Y, Li X, Ren L, Zhao J, Hu Y, et al. Clinical features of patients
infected with 2019 novel coronavirus in Wuhan, China. The Lancet. 2020 Jan 24.
22. 53歳男性,発症後8日目
Huang C, Wang Y, Li X, Ren L, Zhao J, Hu Y, et al. Clinical features of patients
infected with 2019 novel coronavirus in Wuhan, China. The Lancet. 2020 Jan 24.
23. 53歳男性,発症後12日目(前のスライドと同じ患者)
Huang C, Wang Y, Li X, Ren L, Zhao J, Hu Y, et al. Clinical features of patients
infected with 2019 novel coronavirus in Wuhan, China. The Lancet. 2020 Jan 24.
25. Fig. 1 Various lesions of the included patients. The red arrows and boxes indicated the abnormalities. a, b: GGO; c, d: patchy/punctate ground glass
opacities; e, f: patchy consolidation; g: fibrous stripes; h: irregular solid nodules
Pan Y, Guan H, Zhou S, Wang Y, Li Q, Zhu T, et al. Initial CT findings and
temporal changes in patients with the novel coronavirus pneumonia (2019-
nCoV): a study of 63 patients in Wuhan, China. Eur Radiol. 2020 Feb 13.
COVID-19のCT画像
26. Fig. 2 Follow up of the new coronavirus pneumonia. a1–d1 are the
images of the patients’ first consultation, and a2–d2 are the images of
the patients’ re-examination. a1, a2 showed single GGO in one lobe
progressed to ground glass patches and consolidation in multi-lobes;
b1, b2 showed fibrous stripe in right lower lung progressed to strip; c1,
c2 showed solid nodules in right upper lung enlarged; d1 and d2 indicated
that the density of solid nodules decreases and the range increases, like
“melting sugar”
Pan Y, Guan H, Zhou S, Wang Y, Li Q, Zhu T, et al. Initial CT findings and
temporal changes in patients with the novel coronavirus pneumonia (2019-
nCoV): a study of 63 patients in Wuhan, China. Eur Radiol. 2020 Feb 13.
フォローアップ画像