Table 3.

Subjective image quality scores for IR-related specific pulmonary MDCT features and artefacts.

		Reference MDCT scan	Follow-up MDCT scan	P-value
Distorted appearance of fine structures of secondary pulmonary lobules	Observer 1	1.0 ± 0.0	2.1 ± 0.2	<0.001
	Observer 2	1.4 ± 0.6	2.0 ± 0.8	0.017
	Observer 3	1.2 ± 0.4	1.8 ± 0.4	<0.001
Blurring of vascular borders	Observer 1	1.0 ± 0.0	1.1 ± 0.2	0.799
	Observer 2	1.4 ± 0.5	2.0 ± 0.8	0.030
	Observer 3	1.2 ± 0.4	1.3 ± 0.5	0.270
Blurring of bronchial borders	Observer 1	1.3 ± 0.5	1.5 ± 0.5	0.289
	Observer 2	1.4 ± 0.5	2.0 ± 0.7	0.007
	Observer 3	1.1 ± 0.3	1.3 ± 0.4	0.226
Hypoattenuating bands at tissue interfaces	Observer 1	1.9 ± 0.4	2.3 ± 0.5	0.056
	Observer 2	2.2 ± 0.4	2.4 ± 0.6	0.265
	Observer 3	2.0 ± 0.4	2.1 ± 0.3	0.195

Data are presented as mean ± standard deviation. MDCT = multidetector computed tomography.