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P Lumbroso

Publications and source records attributed to P Lumbroso.

47 records · Page 3Linked to original sources
PubMedDate not supplied

X-ray attenuation properties of radiographic contrast media.

A systematic study has been carried out to assess the x-ray attenuation properties of various elements when used as radiographic contrast enhancing media. This study examines the effects of solutions of molecules with effective atomic numbers from 40 to 92 on the signal-contrast ratio of radiographic images formed with various input x-ray spectra on suitable phantoms. A variety of x-ray spectra were used including monoenergetic spectra, constant potential x-ray tube spectra, and computed tomography spectra. In addition, a computer model was used to predict the effects studied. In general, the computer model is able to accurately predict the resulting signal-contrast ratio for a given combination of contrast media, input x-ray spectra, and phantom composition. From these data and calculations, it may be possible to design new contrast media which are tailored to specific diagnostic imaging tasks.

Bromine↗
PubMedDate not supplied

[3 new cases of pregnancy of the uterine horn].

Three new cases of pregnancy in the uterine cornu are described. Three types of localisation are grouped under this heading : interstitial pregnancies, intra-mural pregnancies and angular pregnancies which all have identical mechanisms of pathogenesis (uterine scars) and identical patterns of clinical progression (complicated by uterine rupture). The authors discuss the methods of diagnosis. A constant feature is pain with an asymmetrical uterus. Laparoscopy is often able to make the diagnosis of pregnancy in the uterine cornu, without being able to determine the exact site. Early diagnosis results in conservative surgical treatment.

Adult↗