Exposure of patients to ionising radiation during lung cancer diagnostic work-up.

We examined the dose of radiation received during diagnosis of lung cancer as this may add to the risk of a second primary cancer. Patients undergoing surgery (n=40) or (chemo)radiotherapy (n=40) received comparable doses (28.6 and 25.

CT pulmonary angiography versus ventilation-perfusion scintigraphy in pregnancy: implications from a UK survey of doctors' knowledge of radiation exposure.

Purpose: To prospectively investigate the fetal dosimetry knowledge of health care professionals involved in the management of pulmonary embolism.

Materials And Methods: One hundred sixty-one health care professionals consented to participate in this study, which had ethical board approval. The individuals surveyed were from 14 hospitals (seven university and seven community hospitals) in the United Kingdom, and 68 trainees were included.

Irradiating cell samples in an x-ray radiation cabinet--the effect of tube filtration.

The cell irradiation cabinet described is used for creating DNA damage in cell samples in order to study tumourigenesis. The medical research laboratory involved was using the manufacturer's quoted dose rate (32.2 mGy s(-1)) to determine the required exposure time to impart a dose of 10 Gy.