Objective To investigate the value of delayed 18F-FDG PET/CT with oral intake small dosage diuretics for diagnosing urogenital cancers.Methods Patients with suspected urogenital system cancers were divided into routine dosage diuretic group (n=12) and small dosage diuretics group (n=35).All patients underwent whole-body PET/CT followed by delayed scanning after oral 40 mg or 20 mg Furosemide respectively.The urine maximum standard uptake value (SUVmax) and T/U (the ratio of urine and lesion SUVmax) before and after diuresis were compared respectively.Diagnostic efficacy for malignant urogenital system cancers of small dosage group was calculated.Results The urine SUVmax and T/U were statistically different between routine whole body and delayed scans in both groups (P＜0.05).SUVmax and T/U of routine and delayed scans had no statistical differences between the two groups (P＞0.05).In small dosage group,the sensitivity,specificity,positive predictive value,negative predictive value and accuracy of delayed imaging and routine imaging was 96.77％ (30/31)and 61.29％ (19/31),75.00％ (3/4) and 50.00％ (2/4),96.77％ (30/31) and 90.48％ (19/21),75.00％ (3/4)and 14.29％ (2/14),94.29％ (33/35) and 60.00％ (21/35),respectively.The sensitivity and accuracy were statistically different between routine and delayed imaging (P＜0.001).Conclusion Delayed PET/CT imaging with oral small dosage Furosemide has the same efficacy as PET/CT using routine dosage diuretics,which is useful for diagnosing urogenital cancers.

Objective To explore the effects of the "internet plus conception, design, implementation and operation(CDIO)" teaching mode in Internal Medicine Nursing in higher vocational nursing students. Methods Totally 106 nursing students from nursing Classes 6 and 7, Department of Nursing, Maoming Academy of Health, who were admitted in 2016, were selected by convenient sampling between September and November 2016. Nursing students from Class 6 were divided into the observation group (n=51), while nursing students from Class 7 were divided into the control group (n=55). The control group was taught with the conventional mode, while the observation group received the "internet plus CDIO" teaching mode. The theoretical performance, critical thinking and satisfaction with teaching were compared between the two groups. Results The observation group scored higher in theoretical performance and case analysis than the control group (P＜ 0.05); the total score of the critical thinking competence scale and the score in the dimensions of truth-seeking, analytical ability, confidence in critical thinking and curiosity were higher in the observation group than in the control group (P＜0.05); and the total score of the teaching effect evaluation scale and the score in the dimensions of teaching preparation, teaching process, teaching ability and teaching effects were higher in the observation group than in the control group (P＜0.05). Conclusions The "internet plus CDIO"teaching mode,when applied in Internal Medicine Nursing teaching in higher vocational nursing students,can promote their theoretical performance, critical thinking and satisfaction, which is worth promoting further.