ABSTRACT
@#The precise resection and suture of bronchia, vascular and pulmonary tissue are the key techniques in thoracic surgery. Mechanical suture technique has gradually become a routine operation in thoracic surgery. However, at present, there is still a lack of consensus and guidelines on the application of this technique in thoracic surgery, neither strong evidence-based medical support. In this study, we discuss the application standard of mechanical suture technique in thoracoscopic surgery, irregular treatment techniques, intraoperative complications, and management principles to promote the standardized application of mechanical suture technique. We also explain the shortcomings of the technique in order to promote the further improvement and perfection.
ABSTRACT
Objective To explore the characteristics of diffusion weighted imaging (DWI) of lumbar sacral nerve roots (LSNR)in normal and degenerative lumbosacral vertebrae. Methods The research recruited 20 normal volunteers and 31 patients with spinal stenosis on conventional MRI and DWI scans in lumbosacral spine. We measured the areas from lumbar 3 to sacral 1 at the intervertebral spaces and reconstructed the 3D maximum intensity projection (MIP) and counted the apparent diffusion coefficient (ADC)of LSNR and ganglions. Results In the control group, 196 (98%) LSNR ran symmetrically and lateroinferiorly and 200 ganglions were well defined on MIP of DWI. In the patients group, 74 LSNR showed changes of compression on both T1WI and T2WI, in which DWI appeared thin and distorted in 59 (80%). The ADC value of LSNR were(1.70 ± 0.40)× 10-3 mm2/s and(1.98 ± 0.57) × 10-3 mm2/s separately in normal volunteers and patients (P=0.000), while the ADC values of ganglions were(1.42 ± 0.21)× 10-3 mm2/s and (1.54 ± 0.53)× 10-3 mm2/s respectively in normal volunteers and patients (P=0.000). Conclusion DWI can display the pattern and course of LSNR and ganglions, which indicate that ADC values of compressed LSNR and ganglions are higher than normal ones.