The quantitative analysis of blood flow within central and peripheral blood vessels has attracted more and more interest, for with the rapid developments in vascular surgery and the introduction of percutaneous transluminal angioplasty, it is becom­ ing increasingly important to be able to measure

The second volume of Frontiers in European Radiology covers two very promising techniques in diagnostic radiology, namely digital radiography and nuclear mag­ netic resonance imaging. Leading experts in both fields from Europe and the Unit­ ed States were invited to give a critical overview;