ArticleAJNR. American journal of neuroradiology2025
Impact of Patient Head Posture on Lens Radiation Exposure During Cerebral Angiography.
Article in AJNR. American journal of neuroradiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Randomized Controlled Trial of Patient Positioning and Operator Radiation Exposure During Lower Extremity Catheter Angiography.Life (Basel, Switzerland) · 2025Article
- Striving to Improve Image Quality and Minimize Radiation Dose in Neurointerventional Procedures.Neurointervention · 2025Article
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Authors and funding
8 authors.
Funding
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Abstract
background and purposeCerebral angiography remains crucial for detailed characterization and preoperative assessments for intracranial aneurysm. Despite its diagnostic importance, cerebral angiography poses challenges due to its invasiveness, the risk of neurologic complications, and radiation exposure. To investigate the impact of head posture on lens radiation exposure during cerebral angiography, this study focused on the correlation between radiation doses to the eye lens, head flexion angles, and head size. MATERIALS AND
methodsA retrospective analysis was performed on 20 patients who underwent cerebral angiography for unruptured intracranial aneurysms between October and November 2022. Radiation doses to the lens, which were measured in a prior prospective study by using photoluminescent glass dosimeters, were analyzed alongside head flexion angles, anterior-posterior (AP) head diameters, and kerma-area product (KAP) to evaluate their correlation with lens radiation exposure. The lateral radiation source is located on the left side of the patients.
resultsThe cohort consisted of 20 patients (60% women, mean age: 62.3 ± 9.9 years). The radiation dose to the left eye (the eye closer to the x-ray source) was 2.8 times higher than that to the right eye (9.18 ± 3.31 mGy versus 3.3 ± 0.60 mGy,
conclusionsOur findings underscore the meaningful impact of head posture on lens radiation exposure during cerebral angiography. Adjusting head positioning may provide a practical approach to reduce radiation exposure to the lens. Furthermore, it is worth noting that the left lens received more radiation than the right, likely due to the x-ray source being on the left side of the patient.
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