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1.
Clin Hemorheol Microcirc ; 64(2): 235-244, 2016 Nov 25.
Artigo em Inglês | MEDLINE | ID: mdl-27814284

RESUMO

BACKGROUND: Acoustic radiation force impulse imaging (ARFI) with Virtual Touch Tissue Quantification (VTQ) or Virtual Touch Tissue Imaging Quantification (VTIQ) measures shear wave velocity (SWV), which is proportional to tissue stiffness, a diagnostic parameter for malignancy. OBJECTIVE: To compare the performance of VTQ and VTIQ in diagnosing solid breast tumors. METHODS: Conventional ultrasound, VTQ and VTIQ were used to examine 246 solid breast tumors from 230 patients. Tumors were grouped according to size: <10 mm, 10-20 mm, >20 mm. Pathological diagnoses were via histological examination of biopsies. ROC curves were used to assess diagnostic performance and optimal cut-off points for VTQ and VTIQ. RESULTS: For all sizes, SWVVTQ and SWVVTIQ were higher for malignant versus benign tumors (P < 0.05). SWVVTQ and SWVVTIQ were both higher for tumors≥10 mm (P < 0.05). Areas under the ROC curves (diagnostic performance index; 0.860-0.952) did not differ significantly between VTQ and VTIQ. Optimal cut-off values for SWVVTQ and SWVVTIQ were higher for tumors≥10 mm. CONCLUSION: The diagnostic performance of VTQ and VTIQ was moderate to good for solid breast tumors. Although both methods have higher sensitivities in tumors≥10 mm, their overall diagnostic performance was similar for all sizes.


Assuntos
Neoplasias da Mama/diagnóstico por imagem , Mama/patologia , Técnicas de Imagem por Elasticidade/métodos , Ultrassonografia/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade , Adulto Jovem
2.
J Med Syst ; 36(3): 1327-34, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20852921

RESUMO

Healthcare services integration is a critical task as it attempts to reform the user practices. In response to the request of facilities upgrade, we perform a usability evaluation of the mobile medical treatment carts (MMTC) installed in the Emergency Medicine Department of our healthcare enterprise. A survey conducted in August 2006 identified that our experimental area needs some improvements to support the MMTC adoption. For example, the MMTC can accompany with several popular nursing care items. Follow-up several undertaken investigations indicated that our expectation of the MMTC solution had been reached. Given the evident heterogeneity of viewpoints, it is imperative for a healthcare enterprise to broadly ascertain the requirements of end users before investing in any information technologies.


Assuntos
Informática Médica/instrumentação , Telecomunicações , Serviço Hospitalar de Emergência , Pesquisas sobre Atenção à Saúde , Gestão da Informação , Recursos Humanos de Enfermagem Hospitalar , Taiwan , Interface Usuário-Computador
3.
Telemed J E Health ; 16(7): 807-17, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20815748

RESUMO

Information security management for healthcare enterprises is complex as well as mission critical. Information technology requests from clinical users are of such urgency that the information office should do its best to achieve as many user requests as possible at a high service level using swift security policies. This research proposes the Agile Enterprise Regulation Architecture (AERA) of information security management for healthcare enterprises to implement as part of the electronic health record process. Survey outcomes and evidential experiences from a sample of medical center users proved that AERA encourages the information officials and enterprise administrators to overcome the challenges faced within an electronically equipped hospital.


Assuntos
Segurança Computacional/instrumentação , Sistemas Computacionais/normas , Sistemas de Informação Hospitalar/organização & administração , Sistemas Computadorizados de Registros Médicos/organização & administração , Segurança Computacional/normas , Coleta de Dados , Sistemas de Informação Hospitalar/normas , Humanos , Informática Médica/organização & administração , Informática Médica/normas , Sistemas Computadorizados de Registros Médicos/normas , Modelos Organizacionais , Desenvolvimento de Programas , Avaliação de Programas e Projetos de Saúde , Taiwan
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