Comparison Study Of The Detection Of Pulmonary Nodules By Using Different Slice Thickness Of MDCT And The Role Of CT In The Qualitative Diagnosis Of SPNs

Objective: Solitary pulmonary nodule is a common finding in chest radiography, defined as a round opacity, at least well marginated and no larger than 4 cm in maximum diameter. It is commonly found by accident. It may be a precursor of lung cancer. Significant limitations exist for the assessment of small nodules <6-7 mm in diameter with conventional CT, and the sensitivity is under 70% for such lesions. Many small nodules can not be found by conventional CT. The multidetector-row helical CT uses thinner collimation, increases spatial resolution and reduces partial-volume effects. That may lead to a better detection of small lung nodules. It is beneficial for the patients, especially patients with solitary pulmonary nodules, to have a choice of the further treatment to differentiate the malignance from benign nodules. Comparison of various CT features such as contour, margins, and internal characteristics of pulmonary nodules with pathologic specimens can be helpful for developing criteria to distinguish between cancers and benign lesions.Our aim is to investigate the role of the multidetector-row...