Limiting radiation exposure in coronary CT angiography: much can be achieved with little extra effort

Breast Radiation Protection in Coronary Angiography

Introduction: Coronary angiography (CA) is an interventional diagnostic procedure to assess cardiovascular disease. CA is performed using dedicated fluoroscopic systems equipped with either flat detector or image intensifier. There is an increase in the number of CA annually. Reducing the radiation exposure in the CA is essential, especially due to high fluoroscopy time. In ord...

So much effort, so little progress?

In colorectal cancer (CRC), the treatment guidelines differ for Union International Contrè Cancer (UICC) stage II and III colon cancer patients. In patients with stage II colon cancer without risk factors such as T4 tumor, tumor perforation, emergency surgical procedure, or less than 12 removed lymph nodes, the low risk of recurrence is justifying no role of adjuvant chemotherapy. It would be c...

Can segmented 3D images be used for stenosis evaluation in coronary CT angiography?

BACKGROUND Thanks to the development of computed tomography (CT) scanners and computer software, accurate coronary artery segmentation can be achieved with minimum user interaction. However, the question remains whether we can use these segmented images for reliable diagnosis. PURPOSE To retrospectively evaluate the diagnostic accuracy of coronary CT angiography (CCTA) using segmented 3D data...

[Coronary angiography with synchrotron radiation].

Coronary angiography with synchrotron radiation

Hamburger Synchrotron-Strahlungslabor, H A S Y M at DESY, Notkestr. 85,22607 Hamburg, Germany * Fachbereich 7 Physik &r Universitat Gesamthochschule Siegen, Adolf-Reichwein-Str. 2 , 57068 Siegen, Germany ** Kardiologische Abteilung der Medizinischen Klinik, Universitats-Krankt.nhaus Eppendoif, Martinistr. 52,20251 Hamburg, Germany *** Herz-Kreislauf-Klinik, Romstedter Str. 25,29549 Bad Bevensen...