As an example, 26% of patients with hydrocephalus receive radiation dose to lenses higher than 150 mSv within 3 years. In paediatric patients, repeated head CT examinations result in average ...

CT scans of the head, for example, expose patients to about the equivalence of one year of natural radiation. This is about 100 times the radiation dose from a chest X ray. Other CT examinations ...

The scans are estimated to cause 2% of annual cancers — but new measures could keep radiation at safer levels.

Low-dose stress 99m technetium tetrofosmin CZT imaging 4.2 Rubidium stress/rest PET 2.3 CT: Computed tomography; CZT: Cadmium zinc telluride; PA: Posteroanterior; SPECT: Single-photon emission ...

Ultra-low-dose CT scans, enhanced by a deep learning algorithm, can diagnose pneumonia in immunocompromised patients using only 2% of the radiation dose of standard CT scans.

In patients with head and neck squamous cell carcinoma (HNSCC), low-dose CT achieved higher sensitivity than chest x-ray for detecting lung metastases and second primary lung cancer, but patients ...