Author: Authors: Sebastian Leschka, MD *; Andreas Blaha ** *Institute of Diagnostic Radiology, University Hospital Zurich, Zurich, Switzerland **Business Unit CT, Siemens Healthcare, Forchheim, Germany
To determine further therapy, the 21-year-old patient, status after hepatitis B, was referred to the radiology department. Here a biopsy of the renal parenchyma was performed upon which a hemorrhage occurred accompanied by the formation of a hematoma. A 3-phase kidney CT was performed. Due to the nephritic syndrome only 60 ml of contrast media with a flow rate of 4 ml/s followed by a 60 ml NaCl bolus (4 ml/s) was injected for the kidney CTA.
In the native phase, an accumulation of liquid at the lower left renal pole was seen. The arterial phase showed an extravasation of contrast media out of the left kidney. An inhomogeneous hematoma measuring 15 x 7.5 x 5 cm was detected around the left kidney. Both kidneys perfused symmetrically, unique renal arteries were seen bilaterally. In the venous phase, a normal renal calyx developed on both sides.
Despite the low quantity of applied contrast media, an enhancement in the left kidney could be identified due to a quick acquisition time of 0.7 s. The SOMATOM Definition Flash allows a precise and rapid diagnosis with a reduced effective patient radiation dose of 3.27 mSv.
SOMATOM Definition Flash
Abdomen 3 Phase
Cranio - Caudal
100 eff. mAs
CARE Dose 4D
128 x 0.6 mm
4 ml / sec
The information presented in this case study is for illustration only and is not intended to be relied upon by the reader for instruction as to the practice of medicine. Any health care practitioner reading this information is reminded that they must use their own learning, training and expertise in dealing with their individual patients. This material does not substitute for that duty and is not intended by Siemens Medical Systems to be used for any purpose in that regard.
The drugs and doses mentioned herein are consistent with the approval labeling for uses and/or indications of the drug. The treating physician bears the sole responsibility for the diagnosis and treatment of patients, including drugs and doses prescribed in connection with such use. The Operating Instructions must always be strictly followed when operating the CT System. The source for the technical data is the corresponding data sheets. Results may vary.