X Ray Machine Gallery

Triggerfish skeleton, X-ray

Triggerfish skeleton. Coloured X-ray of a triggerfish (family Balistidae). Its name originates from its ability to erect the first two dorsal spines (upper left), which can then lock or unlock, preventing the fish from being swallowed by predators or being pulled out of its nest. The fish's head extends into a snout with strong jaws containing eight teeth on the lower jaw and six on the upper jaw. Triggerfish are found in the Atlantic, Mediterranean and Indo-Pacific. They grow to between 30-75 centimetres

© D. ROBERTS/SCIENCE PHOTO LIBRARY

Varicose veins, X-ray

Varicose veins. Coloured X-ray of varicose veins in the calf of a fifty-five-year-old male. The veins (red), which carry blood back to the heart, are swollen, irregular and distorted. Varicose veins are most common in the legs, but may also be found in the oesophagus or testis. They occur when valves, which usually prevent the backflow of blood and support the pressure from the blood above, become leaky. The veins then stretch and bulge. Support stockings are usually used to treat the condition, although in some cases surgery is needed to remove the veins. Pregnancy, being overweight, and standing for long periods, all increase the risk of varicose veins

© PASIEKA/SCIENCE PHOTO LIBRARY

Ischaemia, digital angiogram

image d'angiographie numerisee( non soustraite) de la main gauche, en vue de face, par catheterisme hyperselectif des arteres du membre superieur gauche, sous anasthesie generale, chez un patient age de 40 ans, presentant une ischemie de la partie distale du 2A° doigt :presence d'un aspect irregulier de la partie proximale de l'artere ulnaire, avec thrombose focale et thrombose longitudinale non stenosantes, presence d'une occlusion de l'artere interosseuse entre le 2A°&3A° rayon, les arteres colaterales distales du 2A° doigt sont occluses et presentent des petites images endoluminales evocatrices de thrombus ( tableau d'arterite )

© ZEPHYR/SCIENCE PHOTO LIBRARY