Aquilion 64 scanner

Preliminary screening was conducted on 6,471 archived adult Caucasian head CT scans (Department of Radiology, Jagiellonian University Medical College and Department of Radiology, J. Dietl’s Specialistic Hospital, Krakow, Poland), of which 1,500 (23.2 %) CT scans met the study inclusion criteria and formed the basis for conducting measurements.
The CT images were acquired using a Somatom Sensation 16 scanner (Siemens Healthcare, Erlangen, Germany) and an Aquilion 64 scanner (Toshiba Medical Systems, Tokyo, Japan). The following study parameters were applied:exposure 120 kV, 74 mA, 60 mAs; rotation time 0.5 s; slice thickness 0.5 mm. Patient’s sex and age data were acquired from patient files.
Study inclusion criteria were full eruption of third molars on both sides of the maxilla, presence of all maxillary teeth, patient age of >21 years and absence of any pathological (including developmental and traumatic) changes in the region of the maxilla.

We performed X-ray examination on monkeys with mobility problems aged 4–12 years using HF400VA X-ray system (Mikasa, Japan) every 6 months within 2 years. The radiographic score were evaluated by two independent trained readers by the modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS) [14 (link)]. A 0.5-mm-thick of CT section images was obtained by an Aquilion 64 scanner (Toshiba, Japan) with tube current and potential set at 250 mA and 135 kV, respectively.

The data used in the present analysis were based on those from a prospective observational study performed at Kyoto University [27 (link), 28 (link)]. The inclusion criteria were (1) a smoking history of at least 20 pack-years, (2) COPD diagnosis, and (3) no history of lung resection surgery or other lung diseases, such as bronchial asthma or interstitial lung disease. All male patients who underwent chest inspiratory CT scans and completed lung function testing including spirometry, lung volumes and diffusion capacity measurements, and a CAT questionnaire during an exacerbation-free period were enrolled at Kyoto University Hospital from April 2011 to April 2014. Lung function was measured with a Chestac-65 V (Chest MI Corp., Tokyo, Japan), and chest CT scans were performed with an Aquilion 64 scanner (Toshiba; Tokyo, Japan). Calibration of the CT scanner was routinely performed with air and water phantoms, and the scanning conditions were as follows: 0.5-mm collimation, 500-millisecond scan time, 120 peak kilovoltage, and auto-exposure control. Reconstruction was performed with a high spatial frequency algorithm (FC56) as previously reported [27 (link)].

All CT images at full inspiration were obtained with an Aquilion 64 scanner (Toshiba; Tokyo, Japan). The CT scanner was calibrated routinely with air and water phantoms. Subjects were instructed to hold breath at full inspiration during a CT scan. The scanning condition was 0.5-mm collimation, a scan time of 500 milliseconds, 120 kV peak (kVp), and auto-exposure control. The reconstruction was performed with a high spatial frequency algorithm (FC56) as previously reported [21 (link)].