Development of a high-resolution digital tomosynthesis system and its clinical application.

Chest Imaging with Dual-Energy Subtraction Digital Tomosynthesis

“…The system employed has been described previously (23,24). Briefly, it incorporates an X-ray fluororadiographic unit with linear tomographic capability, a high resolution video camera, and a digital image processing unit.…”

“…To solve the problems associated with thin-sliced CT scanning and projection-type dual-energy subtraction images, we have developed a dual-energy subtraction digital tomosynthesis system and assessed its clinical application (23,24). Here we report initial studies on the demonstration of calcifications and present examples of pulmonary images.…”

A phantom study for ground-glass nodule detectability using chest digital tomosynthesis with iterative reconstruction algorithm by ten observers: association with radiation dose and nodular characteristics

“…9 Detection and management of ground-glass nodules (GGNs) is an important issue in lung cancer screening, because persistent GGNs are often the first sign of pulmonary malignancies. 10 Even for pulmonary GGNs, previous studies using simulated pulmonary nodules demonstrated that CDT had detection sensitivities (DSs) superior to those of chest radiography irrespective of nodular size 11 and was comparable to those of low-dose CT (LDCT) in relatively less attenuated nodules. 12 For CT images scanned at reduced or low dose, which actually varied from 50% to 80% in reduction rate based on the radiation dose level adopted in standard-dose CT images, [13][14][15] IR algorithms [16][17][18][19][20][21] can provide noise-reduced images based on different assumptions for noise recognition in image generation with the standard filtered back projection (FBP) algorithm.…”

Comparison of Reconstruction Algorithms for Decreasing the Exposure Dose During Digital Tomosynthesis for Arthroplasty: a Phantom Study

“…Digital tomosynthesis (DT) combines the benefits of digital imaging [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] with the tomographic benefits of computed tomography. The DT approach can be easily implemented in conjunction with radiography at reduced radiation doses and cost.…”