Details

Autor(en) / Beteiligte

• Kawasaki, Kohei
• Imazeki, Masaharu
• Hasegawa, Ryota
• Shiba, Shinichi
• Takahashi, Hiroyuki
• Sato, Kazuhiko
• Ota, Jyoji
• Suzuki, Hiroaki
• Awai, Kazuo
• Sakamoto, Hajime
• Tajima, Osamu
• Tsukamoto, Atsuko
• Kikuchi, Tatsuya
• Kageyama, Takahiro
• Kato, Kyoichi

Titel

A new reference point for patient dose estimation in neurovascular interventional radiology

Ist Teil von

• Radiological physics and technology, 2013-07, Vol.6 (2), p.349-355, Article 349

Ort / Verlag

Tokyo: Springer Japan

Erscheinungsjahr

2013

Quelle

MEDLINE

Beschreibungen/Notizen

• In interventional radiology, dose estimation using the interventional reference point (IRP) is a practical method for obtaining the real-time skin dose of a patient. However, the IRP is defined in terms of adult cardiovascular radiology and is not suitable for dosimetry of the head. In the present study, we defined a new reference point (neuro-IRP) for neuro-interventional procedures. The neuro-IRP was located on the central ray of the X-ray beam, 9 cm from the isocenter, toward the focal spot. To verify whether the neuro-IRP was accurate in dose estimation, we compared calculated doses at the neuro-IRP and actual measured doses at the surface of the head phantom for various directions of the X-ray projection. The resulting calculated doses were fairly consistent with actual measured doses, with the error in this estimation within approximately 15 %. These data suggest that dose estimation using the neuro-IRP for the head is valid.