ABSTRACT
Objective To evaluate the diagnostic value of the spectral CT imaging on the complications after breast augmentations with silicone implants.Methods A lot of 22 cases with breast implants were scanned by the Gemstone spectral imaging (GSI) CT.The original data were loaded in processed workstation, analyzed by GSI analysis software, and then stored the series we needed.The features of the complications after breast augmentations with silicone implants were reviewed retrospectively on the spectral CT images.Results A lot of 44 breast implants scanned in our study and there were 23 breast implants with complications, including 7 breast implants with capsular rupture (6 breast implants with endometrial rupture detected by spectral CT, including 4 breast implants with endometrial rupture, 3 breast implants with outer membrane rupture and leakage), 13 breast implants with capsular contracture (classification according to Baker's classification, 6 in grade Ⅰand 7 in grade Ⅱ), 8 breast implants were moved and 2 breasts had foci of calcification.Conclusions The spectral CT imaging play important role in detecting the complications after breast augmentations with silicone implants by GSI analysis software.
ABSTRACT
Objective To evaluate the clinical value of prone flexed posture lumber CT/MRI examination for lumber disc herniation. Methods Supine posture CT/MRI (SPCT/MRI) and prone flexed posture CT/MRI (PFPCT/MRI) examinations were performed on 1200 patients with lumber disc herniation.The imaging findings on SPCT/MRI and PFPCT/MRI of each case were compared. According to the CT/MRI diagnostic criteria for encapsulated lumber disc herniation ( HLDH ), adhered lumber disc herniation (ALDH) and ruptured lumber disc herniation ( RLDH), the 1200 cases were divided into three groups. On the basis of PFPCT/MRI findings, 868 cases were selected for percutaneous lumbar diskectomy (PLD) with half to twelve years follow up. Treatment effects of PLD on HLDH, ALDH and RLDH were analyzed with x2test. Results Among 249 ALDH cases diagnosed by SPCT/MRI 35 were identified as HLDH by PFPCT/MRI. Among 163 RLDH cases diagnosed by SPCT/MRI, 9 HLDH and 17 ALDH were identified by PFPCT/MRI. In 868 cases treated with PLD, the effective rate of HLDH ( n = 832), ALDH ( n = 25 ), RLDH ( n =11 ) were 825/832 (99. 2% ), 13/25, and 1/11 respectively. The effective rate of HLDH is significantly different from that of ALDH and RLDH ( x2 = 369. 69, P ＜ 0. 01 ). Conclusion PFPCT/MRI may change the grouping result of lumber disc herniation made by SPCT/MRI and can be used to objectively select patients for PLD.