Gloria Pasqua Fanelli MD, Abstract Co-Author: Nothing to Disclose

Massimiliano D'Erme, Abstract Co-Author: Nothing to Disclose

Martina Martinelli MD, Presenter: Nothing to Disclose

Antonella Francioso, Abstract Co-Author: Nothing to Disclose

Francesco Giovagnorio MD, Abstract Co-Author: Nothing to Disclose

Alessandra Tomei, Abstract Co-Author: Nothing to Disclose

Nelia Ravazzolo, Abstract Co-Author: Nothing to Disclose

Laura La Barbera MD, Abstract Co-Author: Nothing to Disclose

Dorina Flecca, Abstract Co-Author: Nothing to Disclose

et al, Abstract Co-Author: Nothing to Disclose

et al, Abstract Co-Author: Nothing to Disclose

To asses the accuracy of gaseous MDCT arthrography and virtual arthroscopy (VA) in the evaluation of glenohumeral joint in patients with shoulder instability, using as references arthroscopy results

97patients (68men and 29women, mean-age 44years, range 19-69) with shoulder dislocation-translation and/or clinical signs of instability underwent MDCT-arthrography and VA reconstruction. All scans were performed using 64-detector row helical CT scanners, with following parameters: 200Kv; 40mA; Tck 0.6mm; Coll. 0.6; ReconIncr 0.6mm; FOV 18x18cm; matrice 512x512; preparation and acquisition time 10min. The patients were examined in supine position with the shoulder in neutral position; intra-articular injection was performed, posteriorly, administering 25cc of room air. The isotropic volumetric data were downloaded to a workstation, providing excellent MPR images, volumetric rendering images (VR) and VA, performed using a PC-based 3D reconstruction program. All patients underwent conventional arthroscopy and results of both tecniques were compared, weighing up sensitivity and specificity

Arthro-CT and VA detected: 19 non-pathologic shoulder; 12 antero-superior glenoid labrum lesions; 43 antero-inferior glenoid labrum lesions; 3 posterior glenoid labrum lesions. Sensitivity and specificity were 94% and 100%, respectively. Arthro-MDCT and VA furthermore identified: 29 wide capsule; 13 Bankart lesions; 22 Bankart osseous lesions; 19 Hill-Sachs lesions; 20 cuff-rotator tears; all these lesions were diagnosed with sensitivity and specificity of 100%

The advantages of gaseous artro-TCMD are: fastness and easiness to do, reproducibility, tolerability (air hasn’t side effects), high spatial resolution, multi-parameter (MPR, VR, VA) and highly accuracy. VA enhances the diagnostic performance of arthro-CT, completing the CT evaluation of main shoulder pathologies. VA provides an ulterior point of view of shoulder joint and images so realistic and didactic, which are useful especially to clinicians not experienced in the assessment of cross-sectional and to orthopaedic surgeon into surgery planning (arthroscopy or arthrotomy)

VA enhances the diagnostic performance of arthro-CT

Fanelli, G, D'Erme, M, Martinelli, M, Francioso, A, Giovagnorio, F, Tomei, A, Ravazzolo, N, La Barbera, L, Flecca, D, et al, , et al, , Sixty-four Slice Multidetector CT Arthrography and Virtual Arthroscopy in Shoulder Joint Evaluation: An Alternative and Effective Technique.  Radiological Society of North America 2007 Scientific Assembly and Annual Meeting, November 25 - November 30, 2007 ,Chicago IL. http://archive.rsna.org/2007/5012830.html