Learning objectives
- To review complex renal cystsaccording to the Bosniak classification usingContrastenhancedultrasound(CEUS).
-To show the normal sonographic findings of these entities and their correlation with other imaging techniques.
-To show the advantages of CEUS as the technique of choice in the initial study of patients presenting with complex cystic renal lesions incidentally.
Background
Introduction
A considerable percentage of renal cell carcinomas appear as complex cystic lesions in the imaging techniques.
Ultrasound (US) is the method of choice for initial evaluation of the kidney.
Although precisely differentiating mixed renal cysts and solid tumors is sometimes difficult using only conventional US or Doppler,so it has traditionally done with computed tomography (CT) and magnetic resonance (MR) with contrast.
But nowadays CEUS revealed promising perspectives in the diagnosis of these renal lesions.
Technique
We perform our studies using ultrasound Toshiba Aplio 500...
Findings and procedure details
Technique
We perform our studies using ultrasound Toshiba Aplio 500 with a volumetric abdominal convex transducer (6.0 MHz).
After intravenous bolus injection of 2.4 ml of contrast agent,
images are acquired with the specific software and photos and videos were made during a period of approximately 3-5 minutes.
The monitor is divided into two screens,
left image contrast and right the same image in grayscale.
The ultrasound agent we use is SonoVue (Bracco,
the most used in Europe) composed of sulfur hexafluoride and stabilized with...
Conclusion
Ultrasound contrast allows to predict the risk of malignancy of renal cystic lesions and classify them according to their degree of complexity.
The advantages over other diagnostic modalities and its accessibility,
stand it as the technique of choice in the evaluation of these lesions incidentally visualized.
References
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