Yoshikazu Awaya

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Occasionally, we have difficulty in diagnosing small peripheral pulmonary nodules. However, efforts have been made to resolve this problem. For instance, computed-tomography (CT), positron emission tomography (PET), flexible bronchoscopy examination (BF), and video-assisted thoracic surgery (VATS) have been performed to investigate such nodules. We have(More)
RATIONALE AND OBJECTIVES This study aimed to evaluate the effects of iterative reconstruction (IR) algorithms on computer-assisted detection (CAD) software for lung nodules in ultra-low-dose computed tomography (ULD-CT) for lung cancer screening. MATERIALS AND METHODS We selected 85 subjects who underwent both a low-dose CT (LD-CT) scan and an additional(More)
The development of CT scanning has been beneficial for clinical medicine. In this case, virtual bronchoscopy (VB) was of clinical benefit. A 71-year-old woman with suspected lung cancer in the upper left lobe remained undiagnosed after investigation at another hospital. VB was used to confirm the location of the tumour, which facilitated an appropriate(More)
To investigate the diagnostic capability of ultra-low-dose CT (ULDCT) with full iterative reconstruction (f-IR) for lung cancer screening. All underwent ULDCT and/or low-dose CT (LD-CT) on a 320-detector scanner. ULDCT images were reconstructed with f-IR. We qualitatively and quantitatively studied 95 nodules in 69 subjects. Two radiologists classified the(More)
A 27-year-old man was admitted with hemoptysis in October 2005. Chest radiograph and CT showed multiple nodules forming a large mass in the left upper lobe. We suspected pulmonary aspergillosis because we detected filamentous fungi made of chains of cells in the bronchial washing fluid. On October 6, therapy with micafungin was initiated. Despite this(More)
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