Ground-glass opacity: high-resolution computed tomography and 64-multi-slice computed tomography findings comparison.
OBJECTIVE
Comparative evaluation of ground-glass opacity using conventional high-resolution computed tomography technique and volumetric computed tomography by 64-row multi-slice scanner, verifying advantage of volumetric acquisition and post-processing technique allowed by 64-row CT scanner.


METHODS
Thirty-four patients, in which was assessed ground-glass opacity pattern by previous high-resolution computed tomography during a clinical-radiological follow-up for their lung disease, were studied by means of 64-row multi-slice computed tomography. Comparative evaluation of image quality was done by both CT modalities.


RESULTS
It was reported good inter-observer agreement (k value 0.78-0.90) in detection of ground-glass opacity with high-resolution computed tomography technique and volumetric Computed Tomography acquisition with moderate increasing of intra-observer agreement (k value 0.46) using volumetric computed tomography than high-resolution computed tomography.


CONCLUSIONS
In our experience, volumetric computed tomography with 64-row scanner shows good accuracy in detection of ground-glass opacity, providing a better spatial and temporal resolution and advanced post-processing technique than high-resolution computed tomography.
Sergiacomi
Gianluigi
G
Department of Diagnostic Imaging, Molecular Imaging, Interventional Radiology and Radiation Therapy, University Polyclinic of Tor Vergata, Viale Oxford 81, 00133 Rome, Italy. carmeciccio@libero.it
Cicciò
Carmelo
C
Boi
Luca
L
Velari
Luca
L
Crusco
Sonia
S
Orlacchio
Antonio
A
Simonetti
Giovanni
G
D000368:Aged; D004487:Edema / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D017563:Lung Diseases, Interstitial / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011856:Radiographic Image Enhancement / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult