Three-dimensional visualizational reconstruction of pedicled island skin flap with arterial arch at the superior border of abductor hallucis muscle / 中国组织工程研究

BACKGROUND:At present, design of pedicled island skin flap with arterial arch at the superior border of abductor hal ucis muscle mainly depends on clinician’s abstract thinking, which makes it difficult for quantitative analysis and exchange learning, and makes it limited in clinical application. OBJECTIVE:To perform the three-dimensional reconstruction of pedicled island skin flap with arterial arch at the superior border of abductor hal ucis muscle, and to establish visible models of the flap. METHODS:One fresh adult cadaver specimen was col ected and perfused with the mixture of lead oxide-gelatine through anterior tibial artery and posterior tibial artery, and then received spiral CT scanning. The branch of anterior medial mal eolus artery, medial tarsal artery and the superficial branch of medial plantar artery as wel as its anastomotic branch were reconstructed with mimics10.0 software, in order to observe the constitute, track-way and distribution of arterial arch at the superior border of abductor hal ucis muscle. According to the feature of anatomical structures, reconstruction was conducted in skin and vessel to obtain three-dimensional arterial skin flap structure. RESULTS AND CONCLUSION:The layers of three-dimensional reconstruction were distinctively displayed, and the arterial arch at the superior border of abductor hal ucis muscle was displayed wel with strong physical sense and clear relationship between skin and arteries. The morphology of various anatomical structures could be observed clearly on the three-dimensional reconstruction image, especial y the formation of arterial arch at the superior border of abductor hal ucis muscle and its surface projection. Three-dimensional reconstruction of pedicled island skin flap with arterial arch at the superior border of abductor hal ucis muscle may provide great value for basic research, clinical experiments and surgical planning, and provide visual reference for the individual operation design and can be able to enhance the successful rate of surgery.

Key steps of application for 863 programs and corresponding suggestions by aiming at its new orientation in 11th five-year plan / 中华医学科研管理杂志

According to current situation of national Science & Technology development during the 11<'th> five-year plan period, the orientation and the management of the National High-tech Research & Develop Program (863 Program) were changed. Based on the 863 project application of Peking University, several key steps of the application process were discussed in this paper, including selecting subject, filling in appli-cation form, and budget-making etc. Meanwhile, corresponding suggestions were raised, which would be helpful to both scientific research personnel and administrators.