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| 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 | 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 |
| 3 | Neurohumoral features of myocardial stunning due to sudden emotional stress 显示文摘 | Wittstein I S Thiemann D R Lima J A | 2005 | N Engl J Med2005，352，6： | 1 |
| 4 | 查看详情显示文摘 | Wang X F da Cunha Lima I C Lei X L | | 0，，： | 1 |
| 5 | Determination of the centesimal composition and characterization of flours from fruit seeds显示文摘 | Lima B N B Lima F F Tavares M I B | 2014 | Food Chemistry2014，151，4： | 1 |
| 6 | Optimisation of soybean hydrothermal treatment for the conversion ofβ-glucoside isoflavones to aglycones显示文摘 | Lima F S Idae I | 2014 | Food Science and Technology2014，56，2： | 1 |
| 7 | Biogeochemical distinction of methane releases from two Amazon hydroreservoirs 显示文摘 | Lima I B T | 2005 | Chemosphere2005，59，： | 1 |
| 8 | Neurohumoral features of myocardial stunning due to sudden emotional stress显示文摘 | WITTSTEIN I S THIEMANN D R LIMA J A C | 2005 | N Engl J Med2005，352，： | 1 |
| 9 | Preparation and properties of hy- drophobic layered silicate-reinforced UV-curable poly ( urethane ac- rylate) nanocomposite films for packaging applications显示文摘 | Kima D Lima M Kima I | 2014 | Progress in Organic Coatings2014，77，6： | 1 |
| 10 | Immobilization of heavy metal ions by broiler litter-derived bioehars in water and soil显示文摘 | Uchimiya M Lima I M Klasson K T | 2010 | Joumal of Agrieultural and Food Chemistry2010，58，9： | 1 |
| 11 | Screening high-risk patients with com puted tomography angiography显示文摘 | Gottlieb I Lima JA | 2008 | Circulation2008，117，10： | 1 |
| 12 | Characterization of designer bio- char produced at different temperatures and their effects on a loamy sand 显示文摘 | NOVAK J M LIMA I XING B S | 2009 | Annals of Environmental Science2009，3，： | 1 |
| 13 | Optimization of titanium cutting by factorial analysis of the pulsed Nd :YAG laser parameters 显示文摘 | Almeida I A Rossi W de Lima MSF | 2006 | Materials Processing Technology2006，，179： | 1 |
| 14 | The anticancer homeopathic composite ' Canova Method' is not genotoxic for human lymphocytes in vitro显示文摘 | Setigmann I C Lima P D | 2003 | Genet Mol Res2003，30，2： | 1 |
| 15 | Neurohumoral features of myocardial stunning due to sudden emotional stress显示文摘 | Wittstein I S Thiemann D R Lima J A et a1 | | 0，，： | 1 |
| 16 | Characterization of designer biochar produced at different temperatures and their effects on a loamy sand显示文摘 | NOVAK J M LIMA I XING B S | 2009 | Annals of Environmental Science2009，3，： | 1 |
| 17 | Immobilization of Heavy Metal Ions (Cu Ⅱ, Cd Ⅱ, Ni Ⅱ, and Pb Ⅱ )by Broiler Litter-Derived Biochars in Water and Soil 显示文摘 | Uchimiya M Lima I M Klasson K T | 2010 | Journal of Agricultural and Food Chemistry2010，58，9： | 1 |
| 18 | Development of a porcine re- productive and respiratory syndrome virus differentiable (DIVA) strain through deletion of specific immunodominant epitopes 显示文摘 | De Lima M Kwon B Ansari I H | 2008 | Vaccine2008，26，2930： | 1 |
| 19 | Anti-Clq antibodies: association with nephritis and disease activity in systemic lupus erythematosus显示文摘 | Moura C G Lima I Barbosa L | 2009 | J Clin Lab Anal2009，23，1： | 1 |
| 20 | lntestinal and pancreas enzyme activity of broilers exposed to thermal stress 显示文摘 | Routman K S l Yoshida L I Frizzas de Lima A C I et d | 2003 | Revista Brasileira de Ci-ncia Avlcola2003，5，1： | 1 |
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