Prevention

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Carotid Plaque Imaging

Ischaemic stroke accounts for 80-85% of all cerebrovascular accidents and causes considerable morbidity and mortality, thereby placing a significant burden on western societies. In the UK alone, stroke costs amount to 10.4 billion EUR annually. These events commonly are a consequence of systemic atherosclerotic disease and with the internal carotid arteries supplying 75% of cerebral blood flow,…

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Selenium-Based Flat Panel X-ray Detector for Digital Fluoroscopy and Radiography

We have succeeded in developing the first selenium-based flat panel X-ray detector for digital fluoroscopy and radiography. This flat panel X-ray detector efficiently captures X-rays that have passed through the patient's body and converts them directly to digital dynamic and static images. It has been confirmed that images with high spatial resolution and contrast can be obtained. The detector…

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Looking at a New Generation

Most babies are born healthy, but there is still a small risk for all women to give birth to a baby with some type of anomaly. Ultrasound has proven to be one of the most reliable procedures to prenatally diagnose some of these conditions. Ultrasound can be used during the entire pregnancy, but in the first trimester ultrasound examinations are, as a rule, used to exactly calculate the pregnancy,…

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Screening for Chromosomal Defects

Chromosomal abnormalities are major causes of perinatal death and childhood handicap. Consequently, the detection of chromosomal disorders constitutes the most frequent indication for invasive prenatal diagnosis. However, invasive testing, by amniocentesis, chorionicvillus sampling (CVS) or cordocentesis, is associated with a risk of miscarriage of about 1% and therefore these tests are carried…

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Virtual Coloscopy

Increasingly more importance is being ascribed to early detection of colon carcinoma and of its precursor stages, since there has been a practically twofold increase in the incidence of this disease in Germany over the past 20 years. With a combination of 1. case history, 2. rectal palpation result, 3.'blood in stools' test (haemoccult) and 4. coloscopy, many conspicuous changes to the intestinal…

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Optimization and Reduction of CT Radiation Exposure

The exposure of patients to radiation by computed tomography has been widely discussed in recent years, both by professionals and by the public. The essential reason for optimizing patient exposure is the basic desire to keep radiation dose at the lowest possible level. This requires above all organ-specific and patient-specific adjustment of the radiation exposure in order to achieve uniform…

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Tumour Characterization Using Micro Flow Imaging

Due to echogenicity differences in comparison with the surrounding liver tissue conventional B-mode-imaging sonography permits the unambiguous classification of the frequently occurring typical liver cysts (criteria: round, echo-free, smoothly demarcated, with edge shadows and sound through transmission) and calcifications (highly reflective, acoustic shadows). The detection and characterization…

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Multislice CT Angiography for Advanced Diagnostics and Therapy Control of Aortic Diseases

Modern imaging modalities are increasingly playing a role in planning therapy for aortic diseases and in follow-up exams after surgery or endovascular intervention. The methods employed for minimally invasive endovascular therapy have been continually improved in recent years and are now being used by vascular surgeons or radiologists to treat thoracic, thoracoabdominal and abdominal aortic…

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Three-Dimensional Angiographic Imaging of Intracranial Aneurysms

In the Caucasian population, subarachnoid hemorrhage (SAH) due to a ruptured intracranial aneurysm is seen with an incidence of 6 to 8 per 100,000. In some specific countries such as Finland and Japan these numbers rise to 20 per 100,000. 60% of patients presenting with an aneurysmal SAH are female. The presenting symptoms are: thunderclap headache in combination with (temporary) loss of…

Transrectal Ultrasound in Prostate Cancer: State of the Art

The current prostate cancer disease burden is considerable due to the high prevalence of the disease, widespread early detection, and the relatively long survival time since many men will die with rather than due to prostate cancer. In the United States, one in every three new cases of cancer in men is prostate cancer. Worldwide, in 2002, it was predicted that 679,023 men received the diagnosis…

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