The PET/CT scanner was a Siemens Biograph 64 TruePoint System (Knoxville, Tennessee, USA). The inhalation procedures took place in a room separated from the PET/CT scanner to avoid any potential contamination, and the inhalation was performed when the patient was sitting in front of a gamma counter. The inhalation of Galligas and Ga‐68 EDTA was terminated when the ventral count rate reached approximately 10 K and 50 K cps, respectively. After the inhalation, PET/CT scans were performed immediately in the supine position. The two PET/CT scans using Galligas and Ga‐68 EDTA aerosols were performed in two consecutive days randomly. Low‐dose axial CT was performed (140 kV, 35 mA, pitch 1:1, 3 mm thickness with 3 mm gap, 512 × 512 matrix, 70 cm field of view) from the neck to the upper abdomen for attenuation correction, followed by 5 lung ventilation PET acquisition (2 bed positions, 3 minutes each) for nearly 30 minutes (LR1 to LR5) to calculate lung retention.
Biograph 64 truepoint system
Manufactured by Siemens
Sourced in United States
The Biograph 64 TruePoint System is a medical imaging device developed by Siemens. It combines positron emission tomography (PET) and computed tomography (CT) technologies to provide high-quality, multi-modal images for clinical and research purposes. The system is designed to enable efficient data acquisition and processing, supporting healthcare professionals in their diagnostic and treatment planning efforts.
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Lab products found in correlation
2 protocols using biograph 64 truepoint system
1
Lung Ventilation Imaging with Galligas and Ga-68 EDTA
2
PET/CT Imaging Protocol for Brain Tumor Assessments
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PET/CT imaging was performed with a Siemens Biograph 64 TruePoint system (Siemens Healthcare, Knoxville, TN, USA) using either FET(O-(2-[18F]-Fluorethyl)-L-Tyrosine) or MET ([11C]-methionine). The acquisition protocol for FET PET-CT consisted of a 20-min single-bed position PET acquisition 20 min after the injection of ~200 MBq of FET intravenously. The acquisition protocol for MET PETCT consisted of a 10 min static image acquisition 20 min post injection of ~700 MBq MET intravenously. For both tracers, a low-dose CT was acquired for attenuation correction. Using a matrix of 128 × 128, PET image reconstruction was carried out. For FET, an ordered subset expectation maximization algorithm (OSEM) of two iterations and 24 subsets and a post-reconstruction Hahn filtering with a FWHM of 5 mm was used, while for MET, an OSEM of six iterations and 21 subsets with no post-reconstruction filtering was used.
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