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Accelerated T2 mapping for characterization of prostate cancer

Liu, Wei ; Turkbey, Baris ; Sénégas, Julien ; Remmele, Stefanie ; Xu, Sheng ; Kruecker, Jochen ; Bernardo, Marcelino ; Wood, Bradford J ; Pinto, Peter A ; Choyke, Peter L

Magnetic resonance in medicine, May 2011, Vol.65(5), pp.1400-6 [Periódico revisado por pares]

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  • Título:
    Accelerated T2 mapping for characterization of prostate cancer
  • Autor: Liu, Wei ; Turkbey, Baris ; Sénégas, Julien ; Remmele, Stefanie ; Xu, Sheng ; Kruecker, Jochen ; Bernardo, Marcelino ; Wood, Bradford J ; Pinto, Peter A ; Choyke, Peter L
  • Assuntos: Magnetic Resonance Imaging -- Methods ; Prostatic Neoplasms -- Diagnosis
  • É parte de: Magnetic resonance in medicine, May 2011, Vol.65(5), pp.1400-6
  • Descrição: Prostate T(2) mapping was performed in 34 consecutive patients using an accelerated multiecho spin-echo sequence with 4-fold k-space undersampling leading to a net acceleration factor of 3.3 on a 3T scanner. The mean T(2) values from the accelerated and conventional, unaccelerated sequences demonstrated a very high correlation (r = 0.99). Different prostate segments demonstrated similarly good interscan reproducibility (p = not significant) with slightly larger difference at base: 2.0% ± 1.6% for left base and 2.1% ± 1.1% for right base. In patients with subsequent targeted biopsy, T(2) values of histologically proven malignant tumor areas were significantly lower than the suspicious looking but nonmalignant lesions (p < 0.05) and normal areas (p < 0.001): 100 ± 10 ms for malignant tumors, 114 ± 23 ms for suspicious lesions and 149 ± 32 ms for normal tissues. The proposed method can provide an effective approach for accelerated T(2) quantification for prostate patients.
  • Idioma: Inglês

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