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2.
Urologe A ; 58(2): 109-113, 2019 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-30623217

RESUMO

Current surveys show that 45% of German urologic residents do not feel sufficiently prepared for their later urologic work, and 85% lack a structured training curriculum in their home institutions. Furthermore, they report a lack of transparency and evaluations as well as economic constraints. This gives reason to revise and adapt the current urologic training curriculum. In the following article we compare the current urologic curriculum with other disciplines and discuss chances and limits of possible future models. These include better definitions of basic training skills, specialization, a structured evaluation system, standardization of exams and room for research.


Assuntos
Internato e Residência , Urologia , Competência Clínica , Currículo , Especialização , Urologia/educação
3.
Clin Radiol ; 73(8): 757.e9-757.e19, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29779758

RESUMO

AIM: To test the potential of unenhanced cardiac- and respiratory-motion-corrected three-dimensional steady-state free precession (3D-SSFP) magnetic resonance imaging (MRI) for the assessment of inferior vena cava (IVC) thrombus in patients with clear-cell renal cell carcinoma (cRCC), compared to standard contrast-enhanced (CE)-MRI and CE-computed tomography (CT). MATERIALS AND METHODS: Eighteen patients with cRCC and IVC thrombus, who received CE-MRI and 3D-SSFP at 1.5 T between June 2015 and December 2017, were included. The diagnostic performance of 3D-SSFP in determining the level of thrombus extension, contrast-to-noise ratio (CNR), and image quality were compared with standard MRI/CT and validated against intraoperative and histopathology results. RESULTS: There was 100% agreement between 3D-SSFP, 83.3% agreement between CE-MRI, and 71.4% agreement between CE-CT and surgical findings regarding the level of IVC thrombus. In addition, 3D-SSFP showed a slightly superior estimate of pathological IVC volume. 3D-SSFP reached a significantly higher CNR in the supra- and infrarenal IVC compared to the morphological sequence T2-weighted half-Fourier axial single-shot fast spin-echo (T2-HASTE) and all phases of CE-MRI. More specifically, 3D-SSFP showed a significantly higher CNR in the infrarenal IVC (mean CNR of 10.09±5.74 versus 4.21±2.33 in the delayed phase, p≤0.001) and in the suprarenal IVC (mean CNR of 9.22±4.11 versus 4.84±5.74 in the late arterial phase, p=0.015). CE-CT also was significantly inferior to 3D-SSFP (p≤0.01) and slightly inferior to CE-MRI (p>0.05). The thrombus delineation score for 3D-SSFP (4.38±0.67) was higher compared to CE-MRI (3.76±0.56, p=0.005). CONCLUSION: This preliminary study indicates that 3D-SSFP can achieve an accurate assessment of IVC thrombus in cRCC patients without the need for contrast medium administration, being superior to standard MRI and CT.


Assuntos
Carcinoma de Células Renais/complicações , Imageamento Tridimensional/métodos , Neoplasias Renais/complicações , Neoplasias Renais/patologia , Imageamento por Ressonância Magnética/métodos , Veia Cava Inferior , Trombose Venosa/diagnóstico por imagem , Trombose Venosa/etiologia , Adulto , Idoso , Carcinoma de Células Renais/patologia , Carcinoma de Células Renais/cirurgia , Meios de Contraste , Feminino , Humanos , Interpretação de Imagem Assistida por Computador , Neoplasias Renais/cirurgia , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Nefrectomia , Estudos Retrospectivos , Trombectomia , Tomografia Computadorizada por Raios X , Trombose Venosa/cirurgia
10.
Aktuelle Urol ; 46(2): 129-43, 2015 Mar.
Artigo em Alemão | MEDLINE | ID: mdl-25897535

RESUMO

Prostate-specific antigen (PSA) has revolutionized the management of prostate cancer (PCa) within the last 3 decades. This widely used tumour marker strongly correlates with the risk of harbouring a PCa but it lacks specificity. Therefore there is an urgent need for new biomarkers especially to detect clinically significant and aggressive PCa. Of all PSA-based markers, only the FDA-approved prostate health index phi shows improved specificity over percent free (%fPSA) and total PSA. Other serum kallikreins or sarcosine in serum or urine show more ambiguous data. In urine, the FDA-approved prostate cancer gene 3 (PCA3) has also proven its utility in the detection and management of early PCa with advantages as compared with PSA and %fPSA. However, some aspects of its correlation with aggressiveness and the low sensitivity at very high values have to be re-examined. The detection of alterations of the androgen regulated TMPRSS2 and ETS transcription factor genes in tissue of ~50% of all PCa patients was a milestone in PCa research. But only the combination of the urinary assays for TMPRSS2:ERG gene fusion and PCA3 (both use the same platform) show the expected improved accuracy for PCa detection. Comparisons of phi and PCA3, the best available PCa biomarkers so far, show an equal performance of both parameters.


Assuntos
Biomarcadores Tumorais/metabolismo , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/metabolismo , Antígenos de Neoplasias/metabolismo , Proteínas do Citoesqueleto/metabolismo , Humanos , Masculino , Peptídeo PHI/metabolismo , Antígeno Prostático Específico/metabolismo , Sensibilidade e Especificidade , Serina Endopeptidases/metabolismo
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