Carcinoma ; diagnosis ; therapy ; Humans ; Paranasal Sinus Neoplasms ; diagnosis ; therapy

Humans ; Thyroid Neoplasms ; surgery ; Thyroidectomy ; methods ; standards

Humans ; Laryngeal Neoplasms ; therapy ; Larynx ; physiology

Carcinoma, Squamous Cell ; surgery ; Humans ; Hypopharyngeal Neoplasms ; surgery ; Laryngeal Neoplasms ; surgery ; Larynx ; physiology ; surgery

Objective: To identify the optimal rotation time and pitch of 64-slice spiral CT angiography for arterial occlusive diseases (AOD) of the lower limbs. Methods: We performed test-bolus in eighty patients with AOD of the lower limbs (48 with intermittent claudication and 32 with ischemic rest pain or ulceration) to confirm the aortic peak time, popliteal artery peak time and aortopopliteal bolus transit time. The patients were randomly assigned to receive two sets of scan protocols for lower limb arterial 64-slice spiral CT angiography (CTA) examination (n = 40), protocol A, with a gantry rotation time of 330 ms and a pitch of 1.0; protocol B, with a gantry rotation time of 500 ms and a pitch of 0. 85. Two experienced radiologists independently evaluated the image quality of the lower limb artery. Results: Great differences in the time to peak enhancement in the aorta (14-33 s) and popliteal arteries (20-48 s) and the aortopopliteal bolus transit time (4-24 s) were found between different AOD patients. Wide overlap of the time to peak enhancement and transit time was observed between intermittent claudication patients and ischemic rest pain or ulceration patients. The qualities of segment images were rated as excellent 63.3% (152/240), good 30.0% (72/240), and poor 30.0% (72/240) for protocol A, and excellent 98. 3% (234/238) and good 1. 7% (4/238) for protocol B, with no poor images in protocol B. Conclusion: 64-slice CTA with a gantry rotation time of 500 ms, a pitch of 0. 85, scan time>30 s, and with the contrast agent injection time maintained at 35 s, can obtain better image of lower limb arteries in patients with AOD of the lower limbs.

Female ; Fertilization in Vitro ; Humans ; Integrative Medicine ; Medicine, Chinese Traditional ; Ovary ; drug effects ; Ovulation Induction ; methods ; Pregnancy ; Pregnancy Rate

Head and Neck Neoplasms ; therapy ; Humans ; Palliative Care

Genetic Therapy ; Head and Neck Neoplasms ; therapy ; Humans

Bone marrow mesenchymal cells (BMSCs) are regarded as donor cells in cell transplantation therapies for spinal cord injury (SCI) for they have the ability of favourable proliferation and multi-directional differentiation, and are easily isolated and culturd and have less immunological reaction. It has been confirmed that subarachnoid space injection is the most ideal delivery technique of BMSCs. Bone marrow mesenchymal stem cells transplantation is safe and its reconditioning role is certain for SCI in early clinical application. The mechanism of BMSCs promoting functional recovery after SCI is probably concerned with vicarious function, nerve trophism, immunosuppression and promoting axonal regeneration by BMSCs.
Animals ; Bone Marrow Cells ; cytology ; Humans ; Mesenchymal Stem Cell Transplantation ; methods ; Mesenchymal Stromal Cells ; cytology ; Spinal Cord Injuries ; surgery

Objective To evaluate the clinical effectiveness of the combined use of S1 pedicle screws and the iliac screws in treatment of sacroiliac dislocation and fracture. Methods 11 patients with sacroiliac dislocation and fracture were treated with S1 pedicle screw and iliac screw fixation technique. In this group, the dislocation was associated with vertical displacement of the sacroiliac joint and rotational deformity of the pelvic ring. They were classified as type B or type C pelvic disruption according to the Tile's classification. 7 patients with disruption of the symphysis pubis or pubic branch fracture underwent additional fixation of the pelvic ring using a reconstruction plate. The remaining 4 patients were treated by the posterior procedure alone. Results The vertical displacement was completely reduced in 7 patients, and the rotational deformity completely corrected in 4 patients. The reduction was maintained at the time of final follow up evaluation. No perioperative complications were found. The combined use of S1 pedicle screws and the iliac screws provided immediate stability and sufficient reduction for sacroiliac dislocation in the 11 patients in this study. Conclusion This hybrid internal fixation procedure is useful for reduction and fixation of sacroiliac dislocation associated with the vertical and rotational instability of the pelvic ring.