|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Feasibility study of computed vs measured high b-value(1400 s/mm2) diffusion-weighted MR images of the prostate显示文摘AIM: To evaluate the impact of computed b = 1400 s/mm2(C-b1400) vs measured b = 1400 s/mm2(M-b1400) diffusion-weighted images(DWI) on lesion detection rate, image quality and quality of lesion demarcation using a modern 3T-MR system based on a small-field-of-view sequence(sFOV). METHODS: Thirty patients(PSA: 9.5 ± 8.7 ng/mL; 68 ± 12 years) referred for magnetic resonance imaging(MRI) of the prostate were enrolled in this study. All measurements were performed on a 3T MR system.For DWI, a single-shot EPI diffusion sequence(b = 0, 100, 400, 800 s/mm2) was utilized. C-b1400 was cal-culated voxelwise from the ADC and diffusion images. Additionally, M-b1400 was acquired for evaluation and comparison. Lesion detection rate and maximum lesion diameters were obtained and compared. Image quality and quality of lesion demarcation were rated accord-ing to a 5-point Likert-type scale. Ratios of lesion-to-bladder as well as prostate-to-bladder signal intensity(SI) were calculated to estimate the signal-to-noise-ratio(SNR). RESULTS: Twenty-four lesions were detected on M-b1400 images and compared to C-b1400 images. C-b1400 detected three additional cancer suspicious lesions. Overall image quality was rated significantly better and SI ratios were significantly higher on C-b1400(2.3 ± 0.8 vs 3.1 ± 1.0, P < 0.001; 5.6 ± 1.8 vs 2.8 ± 0.9, P < 0.001). Comparison of lesion size showed no significant differences between C- and M-b1400(P = 0.22). CONCLUSION: Combination of a high b-value extrap-olation and sFOV may contribute to increase diagnostic accuracy of DWI without an increase of acquisition time, which may be useful to guide targeted prostate biopsies and to improve quality of multiparametric MRI(mMRI) especially under economical aspects in a pri-vate practice setting. | Leonardo K Bittencourt Ulrike I Attenberger Daniel Lima Ralph Strecker Andre de Oliveira Stefan O Schoenberg Emerson L Gasparetto Daniel Hausmann | 2014 | World Journal of Radiology2014，6，6： | 5 |
| 2 | Appropriateness of outpatient gastrointestinal endoscopy in a non-academic hospital显示文摘AIM:To assess the appropriate use and the diagnostic yield of upper gastrointestinal endoscopy and colonoscopy in this subgroup of patients.METHODS:In total,789 consecutive outpatients referred for gastrointestinal(GI) endoscopy [381 for esophagogastroduodenoscopy(EGD) and 408 for colonoscopy] were prospectively enrolled in the study.The American Society for Gastrointestinal Endoscopy(ASGE) guidelines were used to assess the relationship between appropriateness and the presence of relevant endoscopic f indings.RESULTS:The overall inappropriate rate was 13.3%.The indications for EGD and colonoscopy were,respectively,appropriate in 82.7% and 82.6% of the exams,uncertain in 5.8% and 2.4% and inappropriate in 11.5% and 15%.The diagnostic yield was signif icant higher forEGDs and colonoscopies judged appropriate and uncertain when compared with those considered inappropriate(EGD:36.6% vs 36.4% vs 11.4%,P = 0.004;Colonoscopy:24.3% vs 20.0% vs 3.3%,P = 0.001).Of the 25 malignant lesions detected,all but one was detected in exams judged appropriate or uncertain.CONCLUSION:This study shows a good adherence to ASGE guidelines by the referring physicians and a significant increase of the diagnostic yield in appropriate examinations,namely in detecting neoplastic lesions.It underscores the importance that the appropriateness of the indication assumes in assuring high-quality GI endoscopic procedures. | Joo Mangualde Marie I Cremers Ana M Vieira Ricardo Freire lia Gamito Cristina Lobato Ana L Alves Fátima Augusto Ana P Oliveira | 2011 | World Journal of Gastrointestinal Endoscopy2011，3，10： | 2 |
| 3 | Infection control strategies in a neonatal intensive care nuit in Argentina 显示文摘 | Kurlat I Corral G Oliveira F | 1998 | J Hosp Infect1998，40，2： | 1 |
| 4 | Intangible aS- Sets and value relevance : Evidence from the Portuguese stock exchange 显示文摘 | Lidia Oliveira I ucia Lima Rodrigues Russell Craig | 2010 | The British Aceountin Review2010，，2： | 1 |
| 5 | Synthesis and characterization of energetic thermoplastic elastomers for propellant formulations显示文摘 | Kawamoto A M Oliveira J I Dutra R S | 2009 | Journal of Aerospace Technology and Management2009，1，1： | 1 |
| 6 | The Influence of Owner- ship and Control Structures on Firms' Performance: Evidence from Brazil显示文摘 | Dante Mendes Aldrighi Aquiles Elie Guimaraes Kalatzis Ales- sandro Vin i cius Marques de Oliveira | 2009 | Working paper2009，，： | 1 |
| 7 | Infection control strategies in a neonatal intensive care unit in Argentina显示文摘 | Kurlat I Crral G Oliveira F | 1998 | Hosp Infect1998，40，2： | 1 |
| 8 | Chemical structure, surface properties and biological activities of the biesurfactant produced by Pseudomonas aeruginosa LBI from soapstock显示文摘 | BENINCASA M ABALOS A OLIVEIRA I | 2004 | Antonie van Leeuwenhoek2004，85，1： | 1 |
| 9 | Determination ofammonium in marine waters using a gas diffusion multicommutedflow injection system with in-line prevention of metal hydroxidesprecipitation显示文摘 | Oliveira S M Lopes T Toth I V | 2009 | J Environ Monit2009，11，22： | 1 |
| 10 | Tissue en- gineering strategies applied in the regeneration of the human intervertebral disk 显示文摘 | Silva-Correia J Correia S I Oliveira J M | 2013 | Biotechnol Adv2013，31，8： | 1 |
| 11 | Evaluation of pulmonary furtction and quality of life in women with osteoporosis显示文摘 | Lombardi I Jr Oliveira LM Mayer AF | 2005 | Osteoporos Int2005，16，10： | 1 |
| 12 | Usefulness of a scoring system on perinatal outcomes in pregnant women with thrombophilia in the effectiveness of an enoxaparin- based intervention 显示文摘 | FIGUEIR6-FILHO EA DE OLIVEIRA VM BREDA I | 2012 | Rev Bras Ginecol Obstet2012，34，10： | 1 |
| 13 | The effect ofH2treatment on t he activity of activated carbon for the oxida-tion of organic contaminant s in water and the H2O2decompo-sition显示文摘 | Oliveira L C A Silva C N Yoshida M I | 2004 | Carbon2004，42，11： | 1 |
| 14 | A method for particle location and field interpolation on complex, three-dimensional computational meshes显示文摘 | Oliveira P J Gosman A D Issa R I | 1997 | Advances in Engineering Software1997，28，3： | 1 |
| 15 | Purification and growth of PbI2 crystals显示文摘 | OLIVEIRA I B COSTA F E ARMELIN M J | 2002 | IEEE Trans Nucl Sci2002，49，4： | 1 |
| 16 | Long-term follow-up ofbreast capsule contracture rates in cosmetic and reconstructivecases显示文摘 | Marques M Brown SA Oliveira I | 2010 | Plast Reconstr Surg2010，126，3： | 1 |
| 17 | Combining ability for grain chemistry quality traits in a white oat dial- lelic cross显示文摘 | Crestani M Silveira Silveira SF Tessmann EW Mezzalira I Souza Luche H Silva JAG Gutkoski LC Carvalho FIF Oliveira AC | 2012 | Euphytica2012，185，1： | 1 |
| 18 | Food authentication by PCR-based methods显示文摘 | MAFRA I FERREIRA I M OLIVEIRA M B P | 2008 | European Food Research and Technology2008，227，： | 1 |
| 19 | New bio-composites based on thermoplastic starch and bacterial cellulose 显示文摘 | MARTINS I M G MAGINA S P OLIVEIRA L | 2009 | Composites Science and Technology2009，69，13： | 1 |
| 20 | Comparison of DNA marker technologies in characterizing plant genome diversity:variability in Chinese sorghums显示文摘 | Yang W P Oliveira A C Godwin I | 1996 | Crop Sci1996，36，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员