Mon – Fri 9 - 12 a.m.
Mon, Tue, Thu 3 - 5 p.m.
call 069 - 61 90 10
In cooperation with
PKD am Städel
Praxisklinik für Diagnostik
60596 Frankfurt am Main
H. R. Schröter,
Dr. N. Kühne
Dr. K. Martchenko
Color duplex, 3D, contrast sonography
Sonography technology has become an indispensable part of diagnostics in internal medicine. It has no side effects and, with this, no risks for the patient.
High-frequency sounds (ultrasound) are sent from a transducer into the body using a gel to transmit the sounds through the skin. The then reflected sound waves are received again by the transducer and calculated with special processors to produce a cross-section image of the screened tissue or organs.
There are many differences in quality with views to resolution and accuracy of sonography devices: state-of-the-art devices provide many additional possibilities in medical checks.
The three examples below will show this:
A high resolution makes it possible to analyze artery walls, revealing details (stenosis of the vessel) that are smaller than 0,1mm. With this, early stages of damages, e.g. caused by smoking, can be detected.
Color duplex sonography shows the blood flow and determines its velocity. It indicates turbulences in the flow and, with this, precisely measures the degree of a stenosis of the artery.
Focal changes of the organs (above all of the thyroid gland and liver) are special in a certain way: they are frequent and can – in some rare cases – also be an indicator of a malignant disease. In most cases, color duplex and contrast sonography (the latter using a side-effect free contrast medium for ultrasound tests that is injected into the vein) lead to a clear characterization. This spares the patient going through an expensive and uncomfortable MRI as well as through time-consuming follow-up tests.
The newest transducers can also be used to screen the bowels: this enables the practitioner to reveal appendicitis, an inflamed part of the intestinal wall or a diverticulum (a protrusion of the colon, mostly at the end of it) and to then observe their progression under treatment.
These few examples are just meant to give you an idea of modern sonographic exams. Similar procedures can be used to screen the other organs.