Academic Journal
Two-dimensional real-time imaging system for subtraction angiography using an iodine filter
| العنوان: | Two-dimensional real-time imaging system for subtraction angiography using an iodine filter |
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| المؤلفون: | Umetani, Keiji, Ueda, Ken, Takeda, Tohoru, Anno, Izumi, Itai, Yuji, Akisada, Masayoshi, Nakajima, Teiichi |
| المصدر: | Review of Scientific Instruments ; volume 63, issue 1, page 629-631 ; ISSN 0034-6748 1089-7623 |
| بيانات النشر: | AIP Publishing |
| سنة النشر: | 1992 |
| الوصف: | A new type of subtraction imaging system was developed using an iodine filter and a single-energy broad bandwidth monochromatized x ray. The x-ray images of coronary arteries made after intravenous injection of a contrast agent are enhanced by an energy-subtraction technique. Filter chopping of the x-ray beam switches energies rapidly, so that a nearly simultaneous pair of filtered and nonfiltered images can be made. By using a high-speed video camera, a pair of two 512 × 512 pixel images can be obtained within 9 ms. Three hundred eighty-four images (raw data) are stored in a 144-Mbyte frame memory. After phantom studies, in vivo subtracted images of coronary arteries in dogs were obtained at a rate of 15 images/s. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1063/1.1142673 |
| الاتاحة: | http://dx.doi.org/10.1063/1.1142673 https://pubs.aip.org/aip/rsi/article-pdf/63/1/629/19084606/629_1_online.pdf |
| رقم الانضمام: | edsbas.DBC5E0E9 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1063/1.1142673 |
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