Study on the Diagnostic Value of Contrast-Enhanced Ultrasound and Magnetic Resonance Imaging in Prostate Cancer.

Objective: The aim is to study the different roles of single and joint application of magnetic resonance imaging (MRI) and contrast-enhanced ultrasound (CEUS) in prostate malignant tumors.

Methods: 72 patients with prostate masses who underwent CEUS and MRI examination in our hospital from October 2021 and March 2022 were enrolled in this research. The differentially diagnostic roles of CEUS, MRI, and CEUS combined MRI for prostate cancer was assessed on basis of pathological findings as the reference standard.

[Angiogenesis of full-thickness burn wounds repaired with collagen-sulfonated carboxymethyl chitosan porous scaffold encoding vascular endothelial growth factor DNA plasmids].

Objective: To investigate the effects of vascular endothelial growth factor (VEGF) DNA plasmids, encoded in collagen-sulfonated carboxymethyl chitosan porous scaffold, on the angiogenesis in full-thickness burn wounds.

Methods: Wounds and pathological changes were observed at Week 1, 2, 3 and 4 after pure collagen-sulfonated carboxymethyl chitosan porous scaffold (group A) and collagen-sulfonated carboxymethyl chitosan porous scaffold encoding VEGF DNA plasmids (group B) were transplanted onto eachar-removed wounds of full-thickness burn in 6 Bama miniature pigs respectively. Wound healing was observed by pathologic slides after epidermal grafting for 2 weeks (at Week 4) onto the surface of different dermal scaffolds transplanted on wounds for 2 weeks.