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| 1 | Use of three-dimensional printing in preoperative planning in orthopaedic trauma surgery: A systematic review and meta-analysis显示文摘BACKGROUND With the increasing complexity of surgical interventions performed in orthopaedic trauma surgery and the improving technologies used in threedimensional(3D)printing,there has been an increased interest in the concept.It has been shown that 3D models allow surgeons to better visualise anatomy,aid in planning and performing complex surgery.It is however not clear how best to utilise the technique and whether this results in better outcomes.AIM To evaluate the effect of 3D printing used in pre-operative planning in orthopaedic trauma surgery on clinical outcomes.METHODS We performed a comprehensive systematic review of the literature and a metaanalysis.Medline,Ovid and Embase were searched from inception to February 8,2018.Randomised controlled trials,case-control studies,cohort studies and case series of five patients or more were included across any area of orthopaedic trauma.The primary outcomes were operation time,intra-operative blood loss and fluoroscopy used.RESULTS Seventeen studies(922 patients)met our inclusion criteria and were reviewed.The use of 3D printing across all specialties in orthopaedic trauma surgery demonstrated an overall reduction in operation time of 19.85%[95%confidence intervals(CI):(-22.99,-16.71)],intra-operative blood loss of 25.73%[95%CI:(-31.07,-20.40)],and number of times fluoroscopy was used by 23.80%[95%CI:(-38.49,-9.10)].CONCLUSION Our results suggest that the use of 3D printing in pre-operative planning in orthopaedic trauma reduces operative time,intraoperative blood loss and the number of times fluoroscopy is used. | Catrin Morgan Chetan Khatri Sammy A Hanna Hutan Ashrafian Khaled M Sarraf | 2020 | World Journal of Orthopedics2020，11，1： | 7 |
| 2 | 番石榴汁和番石榴粉加工工艺的优化显示文摘对番石榴原浆进行酶处理可以优化产率和澄清度 ,处理时首先测定最具影响力的浓度 ,然后改变培养时间和温度。应用PectinexUltraSP L○R酶进行处理的最佳条件为 :酶液浓度 70 0ppm ,5 0℃作用 1 5h。应用超滤法 (分子量在 4 0~ 6 0kDa)得到的澄清番石榴汁的澄清度比板框压滤法得到的要高 ,前者为 89 6 % ,后者为 82 8% ;但板框压滤法得到的可溶性固形物和抗坏血酸 (Vc)含量要高些。用冷冻干燥、喷雾干燥和隧道式干燥法处理番石榴果汁得到番石榴果汁粉。冷冻干燥得到的产品质量最好 ,但喷雾干燥得到的产品稳定且更经济。感观评定专家组评定由无菌番石榴原浆制得的混汁等级最高 ;用巴氏灭菌、澄清蜜汁饮料 ,冷冻干燥后的番石榴原浆粉或果汁粉制得的果汁并无显著差别。 | CHETAN A CHOPDA 喻孟君 | 2003 | 热带农业工程2003，28，2： | 2 |
| 3 | Clinical significance of prostate 18F-labelled fluorodeoxyglucose uptake on positron emission tomography/computed tomography:A five-year review显示文摘AIM To determine the significance and need for investigation of incidental prostatic uptake in men undergoing ^(18)F-labelled fluorodeoxyglucose(^(18)F-FDG) positron emission tomography/computed tomography(PET/CT) for other indications.METHODS Hospital databases were searched over a 5-year period for patients undergoing both PET/CT and prostate magnetic resonance imaging(MRI). For the initial analysis, the prostate was divided into six sectors and suspicious or malignant sectors were identified using MRI and histopathology reports respectively. Maximum and mean ^(18)F-FDG standardised uptake values were measured in each sector by an investigator blinded to the MRI and histopathology findings. Two agematched controls were selected per case. Results were analysed using a paired t-test and one-way ANOVA. For the second analysis, PET/CT reports were searched for prostatic uptake reported incidentally and these patients were followed up. RESULTS Over a 5-year period, 15 patients underwent both PET/CT and MRI and had biopsy-proven prostate cancer.Malignant prostatic sectors had a trend to higher ^(18)F-FDG uptake than benign sectors, however this was neither clinically nor statistically significant(3.13 ±0.58 vs 2.86 ± 0.68, P > 0.05). ^(18)F-FDG uptake showed no correlation with the presence or histopathological grade of tumour. ^(18)F-FDG uptake in cases with prostate cancer was comparable to that from age-matched controls. Forty-six(1.6%) of 2846 PET/CTs over a 5-year period reported incidental prostatic uptake. Of these, 18(0.6%) were investigated by PSA, 9(0.3%)were referred to urology, with 3(0.1%) undergoing MRI and/or biopsy. No cases of prostate cancer were diagnosed in patients with incidental ^(18)F-FDG uptake in our institute over a 5-year period.CONCLUSION ^(18)F-FDG uptake overlaps significantly between malignant and benign prostatic conditions. Subsequent patient management was not affected by the reporting of incidental focal prostatic uptake in this cohort. | Madhurima R Chetan Tristan Barrett Ferdia A Gallagher | 2017 | World Journal of Radiology2017，9，9： | 1 |
| 4 | Synthesis, Character- ization and Evaluation of Urethane Derivatives of Bis-GMA 显示文摘 | Chetan A K Jeffery W S Carl R S | 2000 | Dental Materials2000，41，2： | 1 |
| 5 | Single step aqueous two-phase extraction for downstream processing of C-phycocyanin from Spirulina platensis显示文摘 | Chethana S Chetan A Nayak M C | 2015 | Journal of Food Science and Technology2015，52，4： | 1 |
| 6 | Aqueous twophase extraction for purification and concentration of betalains显示文摘 | CHETHANAS S CHETAN A N RAGHAVARAO K S M S | 2007 | Journal of Food Engineering2007，81，4： | 1 |
| 7 | Dynamic Spectrum Access with QoS and Interference Temperature Constraints 显示文摘 | Yiping X Chetan N M Haleem M A | 2007 | IEEE Transactions on Mobile Computing (S 1536-1233)2007，6，4： | 1 |
| 8 | Aqueous two phase extraction for purification and concentration of betalains 显示文摘 | Chethanas S Chetan A N Raghavarao KSMS | 2007 | Journal of Food Engineering2007，81，： | 1 |
| 9 | Combined effect of gamma- irradiation and osmotic treatment on mass transfer during rehydration of carrots 显示文摘 | Chetan A Nayak K Suguna N K Rastogi | 2006 | Journal of Food Engineering2006，74，： | 1 |
| 10 | A Novel Two Step Metallization of Ni/Cu for Low Concentrator C-Si Solar Cells 显示文摘 | VIKRANT A Chaudhari CHETAN Solanki S | 2010 | Solar Energy Materials & Solar Cells2010，，94： | 1 |
| 11 | Multiple organ dysfunction syndrome following single wasp sting 显示文摘 | Sharmila RR Chetan C Narayanan P et a/ | 2007 | ln- dian J Pediatr2007，74，12： | 1 |
| 12 | Dynamic spectrum access with QoS and interference constraints显示文摘 | Y P Xing Chetan N Mathur M A Haleem | | IEEE Transactions on Mobile Computing0，6，4： | 1 |
| 13 | Towards fault tolerance pervasive computing 显示文摘 | CHETAN S RANGANATHAN A CAMPBELL R | 2005 | IEEE Technology and Society Magazine2005，24，1： | 1 |
| 14 | Effect of selected additives on microencapsulation of anthocyanin by spray drying 显示文摘 | Chetan A Nayak Navin K Rastogi | 2010 | Drying Technology2010，，28： | 1 |
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