New development of MRI lung nodule simulator for detecting on pulmonary nodule

In an effort to augment the value of MRI in detecting lung nodules, we devised a new lung nodule phantom made of polyvinylalcohol. Besides, a thoracic phantom made of polyvinyl alcohol, solidoils, and artificial bone was prepared to evaluate the environmental effect around the nodule phantom. The p, T1 and T2 values of these simulators were equivalent to those of chest wall tissues. T1 and T2 of these phantoms were calculated by use of a 0.2T resistive magnetic resonance machine. Our findings suggested that T1 and T2 of the lung nodule phantom varies as a function of position. (author)