Dynamic contrast enhancement patterns of solitary pulmonary nodules on 3D gradient-recalled echo MRI

OBJECTIVE. The purpose of this study was to determine whether contrast enhancement features on 3D volumetric gradient-recalled echo MR images allow differentiation of benign from malignant solitary pulmonary nodules

Effect of using endorectal coil in preoperative staging of rectal carcinomas by pelvic MR imaging

Purpose: To assess the accuracy of magnetic resonance imaging with pelvic phased-array and endorectal coils prospectively, and evaluate if endorectal coil provides any additional information to high resolution pelvic MR imaging in rectal carcinoma staging

The role of shear wave elastography in the diagnosis of chronic autoimmune thyroiditis

Aims: The aim of this study is to assess the applicability of shear wave elastography (SWE) in the diagnosis of chronic autoimmun thyroiditis (CAT) patients. Material and methods: The study group consisted of 50 patients with first-diagnosed CAT and 40 control subjects (CS). In all patients with CAT and CS, sonoelastographic measurements were made in both thyroid lobes. Optimal cut-off values were chosen to maximize the sum of sensitivity and specificity. Positive predictive value (PPV), negative predictive value (NPV), and accuracy values were also calculated. Results: Quantitative elastographic analysis evaluated by SWE in CAT patients (2.56 +/- 0.30 m/s) was significantly higher compared with CS (1.63 +/- 0.12 m/s) (p<0.001). The optimal cut-off value was 2.42 m/s. SWE had 77% sensitivity, 71% specificity, 92% PPV, 81% NPV, and 87% accuracy for the presence of CAT. Conclusions: Our data indicate that SWE correctly defines the elasticty of thyroid parenchyma, and this technique may assist in the diagnosis and treatment monitoring of CAT

Cranial Magnetic Resonance Imaging Findings in Patients with Indirect Hyperbilirubinemia

Abstract Purpose: To describe the magnetic resonance imaging (MRI) changes in the patients with indirect hyperbilirubinemia. Methods: MRI findings of eighteen neonates with indirect hyperbilirubinemia were reported by us. The differences in imaging, clinical and biochemical data between three groups were evaluated statistically. Results: Peak bilirubin levels were between 20 and 24 mg per deciliter in 5 of the newborns (group 1), 25 and 29 mg per deciliter in 6 of the newborns (group 2) and 30 mg per deciliter or more in 7 newborns (group 3). There was statistically significant difference between the neurological findings and MRI findings of the patients between three groups. Conclusion: We always demonstrated MRI changes in the patients with kernicterus. Firstly, T1 weighted changes were described in patients with hyperbilirubinemia despite normal neurological examinations. Larger studies with clinical follow up are needed for further understanding of toxic effect of bilirubin in brain. Key words: Ozet [Cukurova Med J 2012; 37(3.000): 139-145