High resolution computed tomography of the orbit withthe Ohio Nuclear Delta head scanner

High Resolution Computed Tomography

High Resolution Computed Tomography

High-resolution computed tomography

This paper investigates high-resolution reconstructions from eeciently sampled data in parallel-beam tomography, in particular local tomography. A class of sampling schemes is deened and characterized, and it is shown that the standard scheme and the interlaced scheme of Cormack are most promising. An error analysis for the ltered backprojection algorithm for both global and local tomography is...

Ultra-High-Resolution Computed Tomography of the Lung: Image Quality of a Prototype Scanner

PURPOSE The image noise and image quality of a prototype ultra-high-resolution computed tomography (U-HRCT) scanner was evaluated and compared with those of conventional high-resolution CT (C-HRCT) scanners. MATERIALS AND METHODS This study was approved by the institutional review board. A U-HRCT scanner prototype with 0.25 mm x 4 rows and operating at 120 mAs was used. The C-HRCT images were...

Correction: Ultra-High-Resolution Computed Tomography of the Lung: Image Quality of a Prototype Scanner

Ryutaro Kakinuma, Noriyuki Moriyama, Yukio Muramatsu, Shiho Gomi, Masahiro Suzuki, Hirobumi Nagasawa, Masahiko Kusumoto, Tomohiko Aso, Yoshihisa Muramatsu, Takaaki Tsuchida, Koji Tsuta, Akiko Miyagi Maeshima, Naobumi Tochigi, Shunichi Watanabe, Naoki Sugihara, Shinsuke Tsukagoshi, Yasuo Saito, Masahiro Kazama, Kazuto Ashizawa, Kazuo Awai, Osamu Honda, Hiroyuki Ishikawa, Naoya Koizumi, Daisuke K...