All fluoroscopic and C-arm CT data were acquired on a biplane flat-panel detector angiography system (AXIOM Artis or Artis Q biplane, Siemens Healthcare GmbH, Forchheim, Germany). Reconstructions of the C-arm CT images and post-processing of the 3D-DSA images were performed on the system’s workstation (syngo X Workplace, Siemens Healthcare GmbH, Forchheim, Germany). Images were generated with a slice matrix of 256 × 256 (one case 512 × 512), an edge-enhanced reconstruction kernel, and an isotropic voxel size of 0.2–0.4 mm. 3D-DSA image data were acquired at the beginning and end of each procedure. Pre-procedural 3D-DSA images of the aneurysm and parent vessels were used for planning the procedure and selecting the stent. At the end of the procedure, fused images (syngo DualVolume, Siemens Healthcare GmbH, Forchheim, Germany) were used to confirm the coiling, the obliteration of the aneurysm, and the stent placement in the parent artery. These images consisted of non-contrast 3D images (mask images) fused with the 3D-DSA images of the vessels, resulting in 3D-DSA vessel images that included coils and stent markers.
Artis q biplane
Manufactured by Siemens
Sourced in Germany
The Artis Q biplane is a medical imaging system designed for diagnostic and interventional procedures. It features dual imaging planes that enable simultaneous visualization of anatomical structures from different angles. The system utilizes advanced X-ray imaging technology to provide high-quality, low-dose images for healthcare professionals.
Automatically generated - may contain errors
5 protocols using artis q biplane
1
3D Imaging Techniques in Endovascular Aneurysm Repair
2
Multiphase CT Angiography and Perfusion for Occlusion Evaluation
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Multiphase computed tomography (CT) angiography (CTA) and perfusion CT (CTP) were performed to identify the location of an occlusion site (SOMATOM Force; Siemens, Erlangen, Germany) to evaluate the extracranial and intracranial vessel lesions. If enhanced imaging was not possible, a non-enhanced brain CT scan and diffusion magnetic resolution image (MRI) with perfusion were recorded with time-of-flight MR angiography to detect vessel lesions (MAGNETOM Vida; Siemens). A biplane angiography equipment, Siemens’ Artis Q biplane, was used for mechanical thrombectomy.
3
Optimized Angiographic Radiation Reduction
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We performed a retrospective review of prospectively acquired data on a Siemens Artis Q biplane after implementing a quality improvement protocol in January 2022 in which pulse rate and frame rate were reduced from 15 p/s to 7.5 p/s and 7.5 f/s to 4.0 f/s respectively. We studied consecutive, unilateral middle meningeal artery embolizations treated with particles. Total radiation dose, radiation per angiographic run, total radiation exposure, and exposure per run were calculated. Multivariable log-linear regression was performed to account for patient body mass index (BMI), number of angiographic runs, and number of vessels catheterized. Statistical analysis was performed using STATA MP Version 17.0 (Stata Corp LP, College Station, Texas, US). Significance was defined as p<0.05.
4
Cardiac Transplant Patient Radiation Exposure
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Contemporaneous heart transplant patients who underwent standard fluoroscopy-guided catheterisation between 2018 and 2020 provided data for radiation dose estimation. Single plane fluoroscopy and angiography procedures were performed in a single catheterisation suite with up-to-date equipment by two providers (Siemens Artis Q biplane and Zen biplane with large- and medium-sized detectors, respectively). Patients were excluded if they were critically ill (resulting in elevated procedure times) or had additional procedures requiring fluoroscopy outside of biopsy or coronary angiography. The demographics and total indexed dose area product were collected and then converted to Gy*m2/kg. Patients were then stratified into two groups: (1) follow-up for rejection with surveillance haemodynamics and (2) traditional complete annual catheterisation. Patients in the follow-up for rejection group had haemodynamics and endomyocardial biopsy under fluoroscopy. Complete annual catheterisation patients had haemodynamics, endomyocardial biopsy, and coronary angiography under fluoroscopy. A group with haemodynamics alone could not be retrospectively created with the current fluoroscopy equipment limiting full direct comparison.
5
Streamlined Stroke Evaluation and Treatment Workflow
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Patients were transferred from the emergency room directly to the angiosuite to receive a noncontrast-enhanced flatpanel computed tomography (FPCT) of the brain, followed by a CT-angiography and parenchymal blood volume imaging acquired with a commercially available biplane angiographic system (Artis Q biplane, Siemens Healthineers, Germany). Images were assessed by the neurointerventionalist and neurologist on duty and if no relevant contraindication exist patients received intravenous thrombolysis according to in-house standards and if an large vessel occlusion requiring endovascular stroke treatment was confirmed, endovascular stroke treatment was commenced without further patient transfer.
Detailed information concerning imaging acquisition parameters are listed in Table I in the Data Supplement.
Detailed information concerning imaging acquisition parameters are listed in Table I in the Data Supplement.
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