Magnetic resonance imaging urodynamics: technique development and preliminary results

Magnetic resonance imaging urodynamics: technique development and preliminary results

Autor Borghesi, Gustavo Autor UNIFESP Google Scholar
Simonetti, Rogerio Autor UNIFESP Google Scholar
Goldman, Suzan M. Autor UNIFESP Google Scholar
Szejnfeld, Jacob Autor UNIFESP Google Scholar
Srougi, Miguel Autor UNIFESP Google Scholar
Ortiz, Valdemar Autor UNIFESP Google Scholar
Bruschini, Homero Autor UNIFESP Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo OBJECTIVES: In this preliminary study we report the development of the video urodynamic technique using magnetic resonance imaging (MRI). MATERIALS AND METHODS: We studied 6 women with genuine stress urinary incontinence, diagnosed by history and physical examination. Urodynamic examination was performed on multichannel equipment with the patient in the supine position. Coughing and Valsalva maneuvers were performed at volumes of 150, 250 and 350 mL. Simultaneously, MRI was carried out by using 1.5 T GE Signa CV/i high-speed scanner with real time fluoroscopic imaging possibilities. Fluoroscopic imaging was accomplished in the corresponding planes with T2-weighted single shot fast spin echo sequences at a speed of about 1 frame per second. Both studies were recorded and synchronized, resulting in a single video urodynamic examination. RESULTS: Dynamic MRI with cine-loop reconstruction of 1 image per second demonstrated the movement of all compartment of the relaxed pelvis during straining with the concomitant registration of abdominal and intravesical pressures. In 5 patients, urinary leakage was demonstrated during straining and the Valsalva leak point pressure (VLPP) was determined as the vesical pressure at leak subtracted from baseline bladder pressure. Mean VLPP was 72.6 cm H2O (ranging from 43 to 122 cm H2O). CONCLUSIONS: The concept of MRI video urodynamics is feasible. In a clinical perspective, practical aspects represent a barrier to daily use and it should be recommended for research purposes.
Assunto urinary incontinence
stress
urodynamics
magnetic resonance imaging
Idioma Inglês
Data 2006-06-01
Publicado em International braz j urol. Sociedade Brasileira de Urologia, v. 32, n. 3, p. 336-341, 2006.
ISSN 1677-5538 (Sherpa/Romeo)
Editor Sociedade Brasileira de Urologia
Extensão 336-341
Fonte http://dx.doi.org/10.1590/S1677-55382006000300015
Direito de acesso Acesso aberto Open Access
Tipo Artigo
SciELO S1677-55382006000300015 (estatísticas na SciELO)
URI http://repositorio.unifesp.br/handle/11600/3067

Mostrar registro completo




Arquivos deste item

Nome: S1677-55382006000300015.pdf
Tamanho: 71.55Kb
Formato: PDF
Descrição:
Visualizar/Abrir

Este item aparece na(s) seguinte(s) coleção(s)

Buscar DSpace


Navegar

Minha conta