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Table 5 An overview of eight scoring systems for CT in cystic fibrosis, adapted from the original publications. In the Bhalla [22], Santamaria [28] and Helbich [30] scores, the generations of bronchial divisions involved for bronchiectasis and mucus plugging are scored separately, in this table this entity is divided between the scores for bronchiectasis and mucus plugging. In the Brody II score [34], air trapping is scored both for extent and appearance (subsegmental or larger). The maximum scores for the Maffessanti [25] and the Robinson [32] scoring systems were calculated from the data in the original publications, since they were not reported there

From: Radiography, tomosynthesis, CT and MRI in the evaluation of pulmonary cystic fibrosis: an untangling review of the multitude of scoring systems

CT scoring systems Bhalla [22] Nathanson [23] Maffessanti [25] Shah [27] Santamaria [28] Helbich [30] Robinson [32] Brody II [34]
  (1991) (1991) (1996) (1997) (1998) (1999) (2001) (2004)
Scoring area BPS 12 zones 4 regions 6 zones + BPS BPS BPS 6 lobes 6 lobes
     (modified Bhalla) (modified Bhalla) (modified Bhalla) (modified Bhalla) (modified Brody I)
Scoring components/scoring levels, scoring range
 Increased lung volume Emphysema 02Range 02   Overinflation 01Range 01   Air trapping 02 (expiratory scans if regional reduced density)
Range 02
Emphysema 02
Range 02
Air trapping on expiratory image 04
Range 04
Air trapping on expiratory image: Extent 03 × appearance 11.5Range: 04.5
 Bronchial wall thickening 03
Range 03
  02
Range 02
03
Range 03
03
Range 03
03
Range 03
04
Range 04
(Extent central 03 + peripheral lung 03) × severity 11.5
Range 09
 Bronchiectasis Severity 03
Extent 03 Sacculations or abscesses 03 Generations bronchial divisions involved 03 × 0.5
Range 010.5
05
Range 05
Diameter 03
Axial extent 03
Range 06
Severity 03
Extent 03
Air-fluid levels 03
Range 09
Severity 03
Extent 03 Generations bronchial divisions involved 03 × 0.5
Range 07.5
Severity 03
Extent 03 Sacculations or abscesses 03 Generations bronchial divisions involved 03 × 0.5
Range 010.5
04
Range 04
(Extent central 03 + peripheral lung 03) × average bronchiectasis size 02
Range 012
 Mucus plugging Extent: 03 Generations bronchial divisions involved 03 × 0.5
Range 04.5
0-1
Range 0-1
Recorded separately Extent: 03
Centrilobular nodules, 06
Range 09
Extent: 03 Generations bronchial divisions involved 03 × 0.5
Range 04.5
Extent: 03 Generations bronchial divisions involved 03 × 0.5
Range 04.5
0-4
Range 04
Extent central lung 03
+ peripheral lung 03
Range 06
 Parenchyma Collapse or consolidation 02 No. of bullae 03Range 05   Alveolar consolidations 01
Atelectasis, bullae and cysts 01
Range 02
Atelectasis or consolidation 03
Range 03
Collapse 02
No. of bullae 03 Acinar nodules/ consolidations 02 Thickened intra or inter lobular septa 03
Ground glass opacities 03
Range 013
Collapse or consolidation 02 No. of bullae 03
Mosaic perfusion 02
Range 07
Atelectasis or consolidation 04Range 04 Extent of dense opacity, ground glass opacity, and cysts or bullae. Each 03
Range 09
 Total score Maximum 25 Per zone max. 6 p (demerit points)
Score
= 72-max. 72
=Minimum 0
% of regional involvement (thirds of lung on axial slices).
Each region × 0–3
Maximum 132
Maximum 24 Maximum 30 Maximum 27 Per lobe max. 20 Maximum 120 Per lobe max. 40.5, but max. possible score is 207. Score then normalised 0100
Maximum 100