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

Humans ; Laryngeal Neoplasms ; therapy ; Larynx ; physiology

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

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.

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

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

China ; Head and Neck Neoplasms ; surgery ; Humans ; Minimally Invasive Surgical Procedures

[Objective]To evaluate the efficacy of percutaneous kyphoplasty (PKP) in managing vertebral compression fractures due to osteoporosis(OVCF).[Method]Thirty-one OVCFs patients (46 vertebrae) undergoing PKP were retrospectively analyzed.In these patients,there were 9 males and 22 females who were from 61 to 78 years old with averaged 68 years,and the injured vertebrae were from T7 to L3.All the patients had plain X-rays and CT scan as well as MR images preoperatively.With all of the patients,local infiltration anesthesia were performed,20 were injected bilaterally while 11 unilaterally.Before and after operarion,the visual analogue scale (VAS) score was estimated and sagittal index(SI) as well as Cobb′s angle of the vertebrae were measured.The data were statistically analyzed with the method of paired t-test.[Result]The duration of follow up after operetion were 6 to 30 months with a mean of 18 months.The VAS score reduced from 8.7 before operation to 2.5 after operation (P

Head and Neck Neoplasms ; therapy ; Humans ; Palliative Care