Description. Lithotripsy uses the technique of focused shock waves to fragment a stone in the kidney or the ureter. The patient is placed in a tub of water or in contact with a water-filled cushion, and a shock wave is created which is focused on the stone. The wave shatters and fragments the stone.ithotripsy uses the technique of focused shock waves to fragment a stone in the kidney or the ureter. The patient is placed in a tub of water or in contact with a water-filled cushion, and a shock wave is created which is focused on the stone. The wave shatters and fragments the stone.
Lesions are a common occurrence in the liver, and the prognoses of focal liver lesions vary. The term lesion is broad and includes any wound, sore, ulcer, tumor or other tissue damage of an organ. A focal lesion in the liver refers to one area of tissue damage identified on the liver that has varying significance depending on the patient's health condition and a variety of other factors.
Hepatic Mass: What are the common liver masses? Malignant liver tumors Metastatic tumors Hepatocellular carcinoma Cholangiocarcinoma; Benign focal liver lesions Cysts congenital parasitic - echinococcal; Cavernous hemangiomas Focal nodular hyperplasia Hepatic adenomas Abscesses; What are the useful imaging modalities to investigate liver masses? CT Ultrasound MRI; Utility of each procedure - Indicate when you would select each procedure. CT scan Is the best imaging modality to evaluate liver masses. It can identify other intra-abdominal masses and vascular involvement, i.e., thrombosis, etc. CT angiography shows early enhancement of tumor in arterial phase. Ultrasound Is most useful intra-operatively, during which the transducer is placed directly upon the liver surface to recognize liver lesions.