Single photon emission computed tomography (SPECT) was used to evaluate bone growth and vascularization of the grafts in vivo. The SPECT/CT system (Infinia VC Hawkeye4, GE) equipped with a spiral CT. 99mTc methylene diphosphonate (MDP) was injected intravenous at a dose of 185 MBq. The hybrid images of SPECT and CT were obtained 4 hours after injection. All images were reviewed by two experienced nuclear medicine physicians. The region of interest (ROI) was selected manually. The uptake ratios of 99mTc MDP (T/NT) were calculated.
Infinia vc hawkeye 4
Manufactured by GE Healthcare
Sourced in United States
The Infinia VC Hawkeye 4 is a nuclear medicine imaging system designed by GE Healthcare. It is a hybrid system that combines single-photon emission computed tomography (SPECT) and computed tomography (CT) imaging capabilities. The system is capable of acquiring high-quality images for diagnostic purposes in clinical settings.
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Lab products found in correlation
5 protocols using infinia vc hawkeye 4
1
Bone Growth and Vascularity Assessment via SPECT
2
SPECT/CT Imaging System and Radioimmunology
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SPECT/CT Imaging System was Infinia VC Hawkeye4 from GE Company Milwaukee (Wisconsin, USA). DFM296 multi-tube radioimmunoassay counter and γ scintillation counter were made in 262 Factory in Xi'an of China. Sephadex G-25 column was from Pharmacia Corporation (Stockholm, Sweden).
3
Diagnosis of Pulmonary Embolism by SPECT/CT Scintigraphy
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All patients with a clinical or laboratory suspicion of pulmonary embolism (PE) were evaluated by scintigraphy, i.e., the most common evaluation method for the diagnosis of PE.
Pulmonary perfusion assessment was performed after an intravenous injection of albumin macroaggregates labelled with radioactive technetium (99mTc-MAA Makro-Albumon®; Medi-Radiopharma Ltd., Érd, Hungary) intravenous. The imaging procedure was commenced immediately after the administration of the radiotracer and the images were acquired by a SPECT/CT hybrid dual-head gamma camera, Infinia VC Hawkeye 4 (GE Healthcare, General Electric Healthcare, Chicago, IL, USA). All SPECT/CT acquisitions were obtained with the patient in the same position. The SPECT/CT images were interpreted by Xeleris 1 and 2 Functional Imaging Workstations (GE Healthcare). The scintigrams were analyzed by two expert nuclear medicine specialists (with 7 and 28 years of experience, respectively).
Based on the SPECT/CT results, the following criteria for the diagnosis of PE were adopted: at least 1 segmental or two sub-segmental perfusion defects (wedge-shaped, base directed towards the pleura) without corresponding abnormalities in the pulmonary parenchyma.
Pulmonary perfusion assessment was performed after an intravenous injection of albumin macroaggregates labelled with radioactive technetium (99mTc-MAA Makro-Albumon®; Medi-Radiopharma Ltd., Érd, Hungary) intravenous. The imaging procedure was commenced immediately after the administration of the radiotracer and the images were acquired by a SPECT/CT hybrid dual-head gamma camera, Infinia VC Hawkeye 4 (GE Healthcare, General Electric Healthcare, Chicago, IL, USA). All SPECT/CT acquisitions were obtained with the patient in the same position. The SPECT/CT images were interpreted by Xeleris 1 and 2 Functional Imaging Workstations (GE Healthcare). The scintigrams were analyzed by two expert nuclear medicine specialists (with 7 and 28 years of experience, respectively).
Based on the SPECT/CT results, the following criteria for the diagnosis of PE were adopted: at least 1 segmental or two sub-segmental perfusion defects (wedge-shaped, base directed towards the pleura) without corresponding abnormalities in the pulmonary parenchyma.
4
Assessing Kidney Function in CKD Patients
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All CKD patients were examined with 99Tcm-DTPA renal dynamic imaging + glomerular filtration rate in the Nuclear Medicine Department of our hospital. The GFR of the lobulated kidney was measured. Total GFR = GFR of the left lobulated kidney + GFR of the right lobulated kidney. The testing instrument used was the Infinia VC Hawkeye 4 dual-probe single-photon emission computed tomography (GE, USA). During the examination, the patient was instructed to take the recumbent position. The probe was close to the renal area of the waist, and the detection field included the kidney area. After a bolus-like injection with 99Tcm-DTPA, the dynamic images were immediately collected, the renogram was drawn, and the GFR of the lobulated kidney was calculated.
5
Bone Scintigraphy for Renal Cancer Metastases
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This retrospective study included 20 renal cancer patients with bone metastases who underwent a series of bone scintigraphy examinations.
Bone scintigraphy studies were acquired using dual-head hybrid SPECT-CT cameras (Infinia VC Hawkeye 1 or Infinia VC Hawkeye 4, General Electric Healthcare). Whole body planar images (low energy high resolution collimator, 256 × 256 matrix, 200 s per projection, 140 kV) were performed 2.5-3 hours after 740-925 Mbq of 99mTc-methylene diphosphonate was injected. The acquisition time was 18-20 minutes.
Bone scintigraphy studies were acquired using dual-head hybrid SPECT-CT cameras (Infinia VC Hawkeye 1 or Infinia VC Hawkeye 4, General Electric Healthcare). Whole body planar images (low energy high resolution collimator, 256 × 256 matrix, 200 s per projection, 140 kV) were performed 2.5-3 hours after 740-925 Mbq of 99mTc-methylene diphosphonate was injected. The acquisition time was 18-20 minutes.
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