WProjectional radiography
WAbdominal x-ray
WCoronary catheterization
WAngiography
WAortography
WArthrogram
WAlan Archibald Campbell-Swinton
WCerebral angiography
WChest radiograph
WPulmonary bay
WCholangiography
WCystography
WCystourethrography
WDental radiography
WDigital subtraction angiography
WDouble-contrast barium enema
WJohn Hall-Edwards
WHysterosalpingography
WMammography
WMyelography
WPanoramic radiograph
WPercutaneous transhepatic cholangiography
WPneumoencephalography
WPulmonary angiography
WRetrograde urethrogram
WRöntgen Memorial Site
WWilhelm Röntgen
WSialography
WUpper gastrointestinal series
WVasography
WVenography