Radiology Key

Fig. 7.1 Intra-ductal papillary mucinous neoplasm of the pancreatic head. The lesion (arrow) appears slightly hypodense to normal pancreatic parenchyma on the unenhanced image (a) and is well identifiable on the…

Familial renal cancer Renal cell tumors Malignant Clear cell renal cell carcinoma Multilocular clear cell renal cell carcinoma Papillary renal cell carcinoma Chromophobe renal cell carcinoma Carcinoma of the collecting…

Fig. 6.1 Example of the unenhanced CT densitometry technique in lipid-rich adrenal adenomas. Unenhanced image (a) shows incidental lesions (arrows) in both adrenal glands. ROIs placed within both lesions (b) reveals…

Fig. 5.1 Frequency and chemical composition of renal stones There are several conditions that can contribute to the formation of kidney stones [1, 9]. The urine supersaturation is of great importance…

Fig. 1.1 Photoelectric effect (left) and compton effect (right) are the physical basis of X-ray attenuation (Courtesy of GE Healthcare, Waukesha, U.S.A.) Another important physical phenomenon should be taken into account…

Fig. 4.1 Standard MDCT urography protocol, consisting of unenhanced (a), contrast-enhanced nephrographic- (b), and excretory phase (c) images, with corresponding coronally reformatted reconstruction, in a patient with urothelial lesion arising from…

Fig. 2.1 Graph shows iodine photoabsorption (blue), Compton effect (green), and coherent (Rayleigh) scattering (red) at different energies. Note that photoabsorption effect of iodine is maximized at 50 keV (at a mean…