Slice wars vs dose wars in multiple-row detector CT.

he short answer is yes. At this oint in time, it seems that the soalled slice wars with regard to the umber of slices provided per comuted tomographic (CT) gantry roation may be reaching a plateau. At he same time, increasing concerns bout radiation dose due to CT exminations are fueling the efforts to educe radiation dose and leading o the beginning of the so-called ose wars. Since 1998, there have been evoutionary advances in multiple-row etector computed tomographic MDCT) technologies, with deand for improved spatial and emporal resolution and 3-D imagng. This has led to rapid competiion among manufacturers as to ho can provide the MDCT scaner that yields the highest number f slices per CT gantry rotation. he slice wars can be traced back to he first 4-slice MDCT scanner that ecame commercially available and linically adopted. For the past 10 ears, the number of CT slices that an be obtained per CT gantry roation has been increasing. It went rom 4 to 16 to 64 to 256 and now o 320 slices. One of the intended oals of the generational evolution n MDCT imaging has been to imge the most challenging organ, the eart. Cardiac imaging, to a large xtent, seems to be the determining u