Objective: To compare moxibustion sensation and infrared thermography by the assessment of heat-sensitization on Guanyuan (CV 4) in patients with primary dysmenorrhea, and to prove the possibility of adopting infrared thermography as an objective demonstration of acupoints heat-sensitization. Methods: Seventy-one patients with primary dysmenorrhea were enrolled to receive moxibustion and infrared to detect the heat-sensitization of Guanyuan (CV 4). The results were then analyzed and compared. Results: The infrared radiation showed a lower temperature when the acupoint Guanyuan (CV 4) was sensitized in patients with primary dysmenorrhea. Compared with moxibustion sensation, its sensitivity rate (real positive rate) was 76.6%, divergence rate (real negative rate) was 70.1%, and the accuracy rate was 74.6%. After giving moxibustion to Guanyuan (CV 4), the infrared radiation area was significantly expanded longitudinally and transversely. Compared with moxibustion test, the sensitivity rate (real positive rate) of infrared test was 78.7%, divergence rate (real negative rate) was 83.3%, and the accuracy rate was 80.3%. Conclusion: To a certain extent, the heat-sensitization of the acupoint Guanyuan (CV 4) in patients with primary dysmenorrhea can be revealed by infrared thermography. The acupoint heat-sensitization phenomena (heat extension or transmission) after giving moxibustion to the heat-sensitized acupoints can also be demonstratedobjectively by infrared thermography, besides experienced subjectively by the receivers.

Objective To investigate the coverage rate of iodized salt and the nutritional status of schoolaged children before and after adjustment of salt iodine concentration in Haishu District,Ningbo City.Methods The observation period (2010-2016) was divided into three sub-periods:before the adjustment (2010,2011),adjustment period (2012-2014) and after the adjustment (2015,2016).Household salt samples and urine samples of school-aged children aged 8-10 were collected during the 3 periods in Haishu District,Ningbo City,and the iodized salt coverage rate,qualified iodized salt consumption rate,urinary iodine concentration were determined.Results Totally 600,900 and 615 household salt samples were collected in the 3 periods,respectively.The medians of salt iodine in the 3 periods were 27.30,23.50 and 23.10 mg/kg;while the iodized salt coverage rates were 97.83％ (587/600),94.67％ (852/900) and 84.72％ (521/615),and the qualified iodized salt consumption rates were 96.50％ (579/600),92.11％ (829/900) and 74.63％ (459/615),respectively.There were significant differences in the iodized salt coverage rates and qualified iodized salt consumption rates among the 3 periods (x2 =86.13,162.57,P ＜ 0.01);and significant decreases of the iodized salt coverage rates and qualified iodized salt consumption rates were observed in the 3 periods (x2trend =77.34,141.11,P ＜ 0.01).The median urinary iodine concentration of the school-aged children in the 3 periods were 171.18,161.95 and 186.07 μg/L;the differences of urinary iodine were statistically significant among the 3 periods (H =11.81,P ＜ 0.01).Conclusions In Haishu District,significant decreases of the iodized salt coverage rates and qualified iodized salt consumption rates are observed after the adjustment of salt iodine concentration.However,the iodine nutrition is adequate in school-aged children.

Objective:To investigate the application of ultrasound imaging in evaluating the curative effect of patients with nutcracker syndrome (NCS) treated with three-dimensional(3D) printing extravascular titanium stents.Methods:From December 2015 to December 2018, a total of 41 NCS patients enrolled in the Second Affiliated Hospital of the Air Force Military Medical University to receive 3D-printing extravascular titanium stents treatment were included in this study. Ultrasound and CT angiography (CTA) were performed before and 1 week after operation to evaluate the compression of left renal vein and related hemodynamic changes.Results:Before the operative, the ultrasound examination showed that the angle between the abdominal aorta and superior mesenteric artery was (21.29±4.53)°, which was significantly improved in 1 week after treatment [(47.42±7.45)°, P<0.001]. Left renal vein was significantly compressed before treatment, with the smallest inner diameter of (1.51±0.49)mm and its peak blood flow velocity was (143.92±50.40)cm/s. Postoperative ultrasound images showed the significant expansion of left renal vein and no high velocity blood flow was observed. Ultrasound examination also showed that the diameter of left renal vein at renal hilum, blood flow velocity at renal hilum and inner diameter of spermatic vein were significantly improved after treatment ( P<0.001). Similar to ultrasound results, CTA also found that the angle between abdominal aorta and superior mesenteric artery increased significantly after treatment[(17.59±4.56)° vs (52.27±9.01)°, P<0.001]. CTA also showed the left renal vein was compressed before treatment, with the smallest inner diameter of (2.09±0.86)mm, and it was significantly expanded after operation. The inner diameter of left renal vein at renal hilum was also significantly reduced after treatment ( P<0.001). Conclusions:Ultrasound imaging can effectively evaluate the LRV compression and related hemodynamic changes before and after 3D printed stent implantation treatment in NCS patients and provide a reliable method to evaluate its clinical efficacy for these patients.