Aquilion one tsx 301c 320

All patients underwent HRCT using multidetector CT (MDCT) systems (Lightspeed VCT/64, GE Healthcare, Chicago, IL, USA; Toshiba Aquilion ONE TSX-301C/320, Toshiba, Tochigi, Japan; Philips iCT/256, Philips, Amsterdam, Netherlands). During a single breath-hold, we craniocaudally scanned the whole chest of each participant from the lung apex to the lowest hemidiaphragm. Acquisition parameters and reconstruction parameters were in accordance with CT standards: tube voltage of 100–120 kV, tube current of 100–300 mAs, section thickness of 0.625–1 mm, table speed of 39.37 mm/s, gantry rotation time of 0.8 s, and reconstruction increment of 1–1.25 mm. All participants assumed a supine position with their hands raised above their heads to undertake the scan.

All cases were scanned from the lung apex to the lung base in a supine position with full inspiration using a multislice spiral CT scanner (Lightspeed VCT/64, GE Healthcare, Chicago, IL, USA; Toshiba Aquilion ONE TSX-301C/320, Toshiba, Tokyo, Japan; Philips iCT/256, Philips, Amsterdam, The Netherlands; and Siemens FLASH Dual Source CT, Siemens, Erlangen, Germany). The acquisition and reconstruction parameters of HRCT scans were as follows: tube voltage of 100–120 kV, tube current of 100–300 mAs, section thickness setting of 0.625 to 1 mm, table speed of 39.37 mm/s, gantry rotation time of 0.8 s, and reconstruction increment of 1 mm.

This study was performed in accordance with the Declaration of Helsinki (as revised in 2013). This was a retrospective study approved by the Institutional Review Board of Teikyo University School of Medicine (approval No. 20-068) and Saitama Cardiovascular and Respiratory Center (approval No. 2020046). Written informed consent was obtained from all patients participating in this study. Clinical data and specimens were collected from the electronic medical records and resected pulmonary tissues of patients at Teikyo University School of Medicine and Saitama Cardiovascular and Respiratory Center. After collecting data of patients who underwent surgery from November 2017 to April 2021, we selected cases requiring intraoperative localization in a hybrid OR (Figure 1). Finally, case of wedge resection for pulmonary lesions both with tumor size ≤20 mm and with distance ≤20 mm from nearest visceral pleura on preoperative multi-detector CT (MDCT; Aquilion ONE TSX-301C320, Toshiba, Japan) were enrolled into this study. The three primary end points of the study were (I) identification rate by CBCT (Allura Xper FD20, Phillips, The Netherlands), (II) pathological negative rate of surgical stump, and (III) exposure dose measurement by a wearable dosimeter (nanoDot^®; Nagase Landauer, Tsukuba, Japan).