COMPARATIVE ANALYSIS OF RADIATION EXPOSURE IN BIPLANE VERSUS MONOPLANE CEREBRAL ANGIOGRAPHY: A SINGLE-CENTER RETROSPECTIVE STUDY
Istanbul Tip Fakultesi Dergisi, cilt.89, sa.3, ss.200-205, 2026 (ESCI, Scopus, TRDizin)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 89 Sayı: 3
- Basım Tarihi: 2026
- Doi Numarası: 10.26650/iuitfd.1828054
- Dergi Adı: Istanbul Tip Fakultesi Dergisi
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, TR DİZİN (ULAKBİM)
- Sayfa Sayıları: ss.200-205
- Anahtar Kelimeler: Angiography, Dose reduction techniques, Equipment design, Fluoroscopy, Radiation dose
- Yozgat Bozok Üniversitesi Adresli: Evet
Özet
Objective: This study aimed to compare patient radiation exposure between biplane and monoplane digital subtraction angiography (DSA) systems during diagnostic cerebral angiography and evaluate the dose efficiency of modern dualplane technology. Materials and Methods: This retrospective singlecenter study included 61 consecutive patients who underwent diagnostic cerebral DSA between November 2021 and April 2022. Examinations were performed using a monoplane system (n=31) and a biplane system equipped with advanced dose reduction technology (n=30). For each procedure, total fluoroscopy time, fluoroscopy dosearea product (DAP), exposure DAP, total DAP, and cumulative air kerma were recorded. Groups were compared using independentsamples ttests or Mann–Whitney U tests, with p<0.05 considered statistically significant. Results: Fluoroscopy time was comparable between the monoplane and biplane groups (p=0.736). The biplane system produced a significantly greater number of image acquisitions (p<0.001) yet achieved markedly lower radiation doses. Median exposure DAP and total DAP were reduced by approximately 25–35%, and total air kerma was significantly lower in the biplane group (p<0.001). Fluoroscopy DAP was slightly higher for the biplane system (p=0.008), likely reflecting occasional dualplane use during complex catheter navigation. Conclusion: Despite acquiring more projections, the biplane DSA system demonstrated substantially lower total radiation exposure than the monoplane system. These results indicate that modern biplane technology with advanced dose reduction algorithms (ClarityIQ) offers improved dose efficiency and enhanced patient safety in diagnostic cerebral angiography. The observed reduction in radiation dose may reflect not only the biplane configuration itself but also differences in system generation, imageprocessing algorithms, and acquisition protocols.