Canadian Respiratory Journal / 2020 / Article / Tab 3 / Review Article
Contribution of CT Features in the Diagnosis of COVID-19 Table 3 The less frequent CT findings acquired from the published literature.
Ref. N Reticular pattern Air bronchogram Thickening of the bronchial wall Bronchiolectasis Other signs Li et al. [38 ] 83 4.8% (4/83) — 22.9% (19/83) — LO: 65.1% (54/83); SWS: 25.3% (21/83) Guan et al. [42 ] 47 — 76.6% (36/47) — — Stripe: 57.5% (27/47) Miao et al. [43 ] 54 — 25.9% (14/54) — — PT: 20.4% (11/54) Zhang et al. [44 ] 60 — 93% (56/60) — — — Zhang et al. [45 ] 34 11.8% (4/34) 41.2% (14/34) — — VE: 50% (17/34) Gervaise et al. [46 ] 72 76% (55/72) — — — PE: 22% (16/72) Dai et al. [47 ] 219 61.6% (135/219) 84% (184/219) 34.7% (76/219) 79% (173/219) PT: 77.6% (170/219) Han et al. [34 ] 108 — 48.1% (52/108) — — VT: 79.6% (86/108); HS: 63.9% (69/108) Li and Xia [48 ] 51 — 68.6% (35/51) — — VE: 82.4% (42/51) Bernheim et al. [10 ] 121 — — 11.6% (12/121) 0.8% (1/121) RHS: 1.7% (2/121) Zhao et al. [9 ] 101 48.5% (49/101) — 28.7% (29/101) 52.5% (53/101) VE: 71.3% (72/101) Wang et al. [49 ] 110 — — — — — Zhou et al. [33 ] 62 62.9% (39/62)& 72.6% (45/62) — 32.2% (20/62) FS: 56.5% (35/62); VS: 54.8% (34); VE: 45.2% (28/62) Xiong et al. [50 ] 42 — 62% (26/42) — — FS: 74% (31/42) Yoon et al. [51 ] 9 (40 lesions) — 27.5% (11/40) — — RHS: 2.5% (1/40) Cheng et al. [39 ] 11 81.8% (9/11) 72.7% (8/11) — 27.3% (3/11) CN: 27.3% (3/11) Zhou et al. [52 ] 100 (272 CT scans) 69.1% (188/272) 57.7% (157/272) — — MD: 45.6% (124/272);VS: 54.8% (149/272) Guan et al. [53 ] 52 — 69.2% (36/52) — — IL: 71.2% (37/52) Liu et al. [54 ] 112 — 19.6% (22/112) 49.1% (55/112) — LO: 64.2% (72/112) Hu et al. [55 ] 46 — 69.6% (32/46) — — VE: 89.1% (41/46); HS: 26.1% (12/46) Li et al. [56 ] 131 — 57.3% (75/131) — — VE: 64.1% (84/131); fibrosis: 32.8% (43/131) Wu et al. [35 ] 130 — 76.9% (100/130) — 40% (52/130) PPS: 75.3% (98/130); VT: 76.9% (100/130); HS: 13.8% (18/130) Zhu et al. [57 ] 72 61.1% (44/72) 66.7% (48/72) — — VS: 50% (36/72); VE: 45.8% (33/72) Wang et al. [58 ] 13 — 46.2% (6/13) 0 (0) — — Shang et al. [59 ] 307 (628 CT scans) — 33.6% (211/628) — — VE: 66.2% (416/228) Vancheri et al. [60 ] 180 15% (27/180) — — — PE: 6.6% (12/180) Fan et al. [61 ] 150 — — — — — Luo et al. [62 ] 70 — — — — PT: 17.1 (12/70) Chen et al. [63 ] 21 — 57.1% (12/21) — — VE: 66.7% (14/21) Cecconi et al. [64 ] 235 — — — — — Iwasawa et al. [65 ] 6 — — — — LO: 50% (3) Fu et al. [66 ] 55 — 52.7% (29/55) — — VT: 81.8% (45/55) Song et al. [32 ] 51 21.6% (11/51) 80.3% (41/51) — — PE: 7.8% (4/51) Chung et al. [67 ] 21 — — — — LO: 14.3% (3) Pan et al. [31 ] 63 — — — — FS: 17.5% (11/63) Xu et al. [68 ] 41 — 53.7% (22/41) — — TIS: 73.2% (30/41) Wu et al. [69 ] 80 — — 11.3% (9/80) — SWS: 25% (20/80); SL: 20% (16/80) Shi et al. [29 ] 81 3.7% (3/81) 56.98% (46/81) — 11.1% (9/81) PT: 32.1% (26/81) Xu et al. [70 ] 90 — 7.8% (7/90) — — LO: 61.1% (55/90); PT: 55.6% (50/90) Liu et al. [71 ] 73 — — 26% (19/73) — TLT: 89% (65/73) Zhou et al. [72 ] 62 0 (0) 22.6% (14/62) 0 (0) — RO: 25.8% (16/62); HS: 11.3% (7/62); SCL 9.7% (6/62) Wang et al. [73 ] 1012 — — — — — Caruso et al. [74 ] 58 — 36.2% (21/58) 1.7% (1/58) 41.4% (24/58) HS: 12.1% (7/68); Himoto et al. [75 ] 6 — — 0 (0) — PN: 33.3% (2/6) Long et al. [1 ] 36 — — — — LYM: 2.8% (1/36); PE 5.6% (2/36) Han et al. [76 ] 17 (65 CT scans) 0 (0) 41.5% (27/65) — 3.1% (2/65) VE: 64.6% (42/65) Ai et al. [4 ] 1014 (888 CT scans) — — — — NL: 2.7% (24/888) Pan et al. [8 ] 21 (82 CT scans) — — — — — Yang et al. [77 ] 149 (2376 segments)# 53% (79/149) 54.4% (81/149) — 17.4% (26/149) SLO: 20.8% (31/149); CC: 8.1% (12/149); PE: 6.7% (10/149) Ding et al. [78 ] 112 (348 CT scans) — 36.5% (127/348) — 25.6% (89/348) LO: 54% (188/348); PE 17% (59/348)
Note: GGO: ground-glass opacity. The symbol “
” represents the total number of patients with positive RT-PCR. Symbol “&” represents reticular pattern and GGO. Symbol “#”: 149 is the total number of COVID-19 patients. The number in the parentheses represents the total of pulmonary segments in 132 patients with abnormal CT findings (132 × 18 = 2376, 18 pulmonary segments/1 patients). Some percentages are calculated based on the total segments. “—”: not available. LO: linear opacities; SWS: spider web sign; PT: pleural thickening; VE: vascular enlargement; VT: vascular thickening; HS: halo sign; RHS: reverse halo sign; FS: fibrous stripes; VS: vacuolar sign; CN: centrilobular nodules; MD: microvascular dilation; IL: irregular line; PPS: parallel pleura sign; VES: vascular enhancement sign; PE: pleural effusion; SL: subpleural line; TIS: thickened intralobular septa; TLT: thickening of lung texture; RO: rounded opacities; SCL: subpleural curvilinear line; PN: pulmonary nodules; LYM: Lymphadenopathy; NL: nodular lesions; SLO: subpleural linear opacity; CC: cystic change.
