CCTA imaging was performed with a Philips Brilliance 64-slice CT scanner (Philips Healthcare, Cleveland, Ohio, USA). A beta blocker (5–20 mg Seloken, Astra Zeneca) was administered prior to the CCTA scan to lower the heart rate to ≤65 beats/min (bpm). A non-contrast scan was initially conducted for evaluation of coronary artery calcification (CAC) (ECG gated, 120 kV, 55 mA, 0.4 ms rotation, 40×0.625 mm collimation). The contrast-enhanced scan (90–130 mL Omnipaque 350 mg/mL (GE Healthcare, Princeton, New Jersey)) was then performed with prospective ECG gating (conducted with 120 kV, 350–500 mA, 0.4 ms rotation, 64×0.625 mm collimation) when a heart rate ≤65 bpm was achieved. Retrospective ECG gating (conducted with 120 kV, 800 mA, 0.2 Pitch, 0.4 ms rotation, 64×0.625 mm collimation) was used for heart rates ≥65 bpm. Nitroglycerin 0.4 mg (Nitrolingual, Pohl-Boskamp, Hohenlockstedt, Germany) was administered sublingually 1–3 min prior to the contrast injection.
Brilliance 64 slice ct scanner
Manufactured by Philips
Sourced in United States
The Brilliance 64-slice CT scanner is a medical imaging device manufactured by Philips. It is designed to capture high-resolution, three-dimensional images of the body's internal structures using advanced X-ray technology. The scanner is capable of capturing 64 individual slices or images during a single rotation, providing healthcare professionals with detailed anatomical information to support diagnostic and treatment decisions.
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Lab products found in correlation
Seloken, by AstraZeneca (1 mentions)
Omnipaque 350 mg ml, by GE Healthcare (1 mentions)
Trigger bolus software, by Philips (1 mentions)
Ingenia, by Philips (1 mentions)
Discovery ct750 hd scanner, by GE Healthcare (1 mentions)
256 slice ict scanner, by Philips (1 mentions)
Ingenia 1.5 tesla mri scanner, by Philips (1 mentions)
Sonovue, by Bracco (1 mentions)
15 protocols using brilliance 64 slice ct scanner
1
Coronary CT Angiography Protocol
2
Comprehensive Stroke Diagnosis with 4D Flow MRI
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CTA was performed using a Brilliance 64-slice CT scanner (Philips Healthcare, Best, The Netherlands) with a bolus tracking program (Trigger Bolus software; Philips Healthcare). All patients were placed in the supine position. The parameters were the same as those reported in European Radiology (1 (link)).
4D flow MRI data were derived from 3.0 T MRI (Ingenia; Philips Healthcare) with a 32-channel standard head coil. The velocity encoding (VENC) of 4D flow MRI was flexibly evaluated from two-dimensional (2D) PC MRI results. The acquisition plane of 2D PC MRI was perpendicularly positioned at the distal end of the stenosis or the distal TS of the symptomatic side. The VENC for 2D PC MRI was first set to 40 cm/s; if velocity aliasing emerged in the image, the VENC value was increased in 20 cm/s increments until the aliasing was eliminated (28 (link)). Then, this final VENC of 2D PC MRI was set as the VENC of 4D flow MRI. The acquisition parameters of 2D PC MRI and 4D flow MRI are shown inTable 1 .
4D flow MRI data were derived from 3.0 T MRI (Ingenia; Philips Healthcare) with a 32-channel standard head coil. The velocity encoding (VENC) of 4D flow MRI was flexibly evaluated from two-dimensional (2D) PC MRI results. The acquisition plane of 2D PC MRI was perpendicularly positioned at the distal end of the stenosis or the distal TS of the symptomatic side. The VENC for 2D PC MRI was first set to 40 cm/s; if velocity aliasing emerged in the image, the VENC value was increased in 20 cm/s increments until the aliasing was eliminated (28 (link)). Then, this final VENC of 2D PC MRI was set as the VENC of 4D flow MRI. The acquisition parameters of 2D PC MRI and 4D flow MRI are shown in
3
Cervical Spine CT Imaging After MVA
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Patients were examined in a Philips Brilliance 64-slice CT scanner. A special study protocol was designed since the patients included were also eligible to participate in a related study at the same institution. The study CT protocol was extended craniocaudally to include the clivus and sternal tip. The expanded FOV was compensated with a low radiation dose profile with CTDIvol of around 3.8.
Patients aged > 18 years that were admitted to the emergency department at Södersjukhuset, Stockholm, Sweden for neck pain after a motor vehicle accident were included in the study. Those requiring medical imaging in the emergency setting according to the Canadian C-spine rules [23 (link)] underwent a CT of the cervical spine. The patients whom the examining physician deemed not to require medical imaging were later contacted by the research team and offered to participate in the study. If they accepted, they were also examined with a CT of the cervical spine. All patients had been contacted and gave their informed consent prior to the CT scan.
Patients aged > 18 years that were admitted to the emergency department at Södersjukhuset, Stockholm, Sweden for neck pain after a motor vehicle accident were included in the study. Those requiring medical imaging in the emergency setting according to the Canadian C-spine rules [23 (link)] underwent a CT of the cervical spine. The patients whom the examining physician deemed not to require medical imaging were later contacted by the research team and offered to participate in the study. If they accepted, they were also examined with a CT of the cervical spine. All patients had been contacted and gave their informed consent prior to the CT scan.
4
Abdominal CT Imaging Protocol
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The Discovery CT750 HD scanner (GE Medical Systems, Milwaukee, WI, USA), Toshiba Aquilion 64-slice spiral CT scanner (Tokyo harbor area, Japan), Philips 256-slice ICT scanner (Amsterdam, The Netherlands), and Philips brilliance 64-slice CT scanner (Amsterdam, The Netherlands) were used for CT scanning. After fasting for 6-8 h, the patient had warm water (500-1000 mL) 10 min before the examination with plain and enhanced abdominal scanning in the supine position. The scanning parameters were as follows: slice thickness 5 mm, pitch 0.9-1.0, scanning field 350 mm×350 mm, matrix 512×512, tube voltage 100–120 kV, tube current 160–300 mA, and X-ray tube rotation time 0.5–0.8 s. The contrast agent was injected through the elbow vein at a flow rate of 3.0–3.5 mL/s and a dose of 1.0–1.2 mL/kg body weight. The scanning time of the arterial phase, venous phase, and delayed phase was 30-35 s, 50-60 s, and 180 s, respectively, after injection of contrast agent. The CT images at the arterial and venous phase were selected for imaging analysis.
5
Coronary Artery Calcium Scoring by CT
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Non-contrast electrocardiogram-gated CT of the heart was performed to assess CACS using a Philips Brilliance 64-slice CT scanner. Each slice has a 3 mm increment, tube voltage of 120 kVs, the effective dose was calculated by multiplying the dose length product (DLP) and a w conversion coefficient of 0.014. The approximate effective dose was 0.85 mSv. The official calcium scoring studies were interpreted by two radiologists specialized in cardiovascular imaging and two cardiologists specialized in cardiovascular imaging. The four specialists were not part of this protocol and were blinded from the clinical and laboratory data.
6
Multimodal Imaging Evaluation of HIFU Ablation
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Within 2 weeks prior to HIFU treatment, CT and MRI were performed to provide baseline images (Brilliance 64-slice CT scanner, Ingenia 1.5 Tesla MRI scanner, Philips Healthcare, Amsterdam, Netherlands). Directly prior to the HIFU procedure, tumor perfusion was determined using CEUS after intravenous administration of Sonovue ® (Bracco, Italy). CEUS and CT were performed during the first 24 hours after HIFU and an MRI examination was carried out within 3 days. Long-term monitoring comprised CT/MRI/CEUS examinations after 6 weeks, 3 months and then in threemonth intervals. The tumor ablation rate (%) was calculated as the ratio between the avascularized (ablated) volume and the total volume; the volume reduction (%) was determined after 6 weeks and 3 months. Therapy-related side effects and complications were recorded [14] .
7
Cranial CT Imaging Protocol
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CT image acquisition was performed using a Brilliance 64-slice CT scanner (Philips Healthcare, Netherland). Helical NCCT (120 kV, 100–350 auto-mA) was performed using a 5-mm section thickness from the foramen magnum through the vertex.
8
Coronary CT Angiography Protocol
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CCTA was acquired on a Philips Brilliance 64-slice CT scanner (79%), Philips 256-slice Brilliance iCT scanner (7%) (Philips Medical Systems, Best, The Netherlands), or Siemens SOMATOM dual-source CT scanner (15%) (Siemens Healthcare, Forchheim, Germany) with a prospectively ECG-triggered scan mode. A non-enhanced scan to calculate the Agatston calcium score was performed prior to the CCTA. Additional intravenous metoprolol was administered to achieve a heart rate below 62 bpm. The tube voltage ranged between 100 and 120 kVp depending on the body mass index of the patients and the tube current between 600 and 800 mAs. Sublingual nitroglycerin was administered to all patients before image acquisition. All gated images were triggered at 75% of the R‑R interval and reconstructed with a slice thickness of 0.8 mm.
9
Chest CT Scanning Protocol for Imaging
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The CT scans were performed with a Brilliance 64-slice CT scanner (Philips Medical Systems Corporation, Cleveland, Ohio, USA). The following parameters for the 64-section multi-detector scanner were used: reconstructed slice thickness, 3 mm; reconstruction increment, 2 mm; x-ray tube current, 200 mAs; voltage, 120 kV; and collimation, 6.4 × 0.63 mm. A filtered back projection reconstruction technique was used.
The chest CT scans were done in the craniocaudal direction. The iodine contrast material dosage was 300 mgI/kg. The injection flow rate was 2.5 mL/s. The chest CT was performed during the arterial phase. Both arms were raised above the shoulder region. No artefacts were detected in the thyroid region on selected chest CT examinations. The average radiation dose associated with chest CT scanning was 7 mSV.
The chest CT scans were done in the craniocaudal direction. The iodine contrast material dosage was 300 mgI/kg. The injection flow rate was 2.5 mL/s. The chest CT was performed during the arterial phase. Both arms were raised above the shoulder region. No artefacts were detected in the thyroid region on selected chest CT examinations. The average radiation dose associated with chest CT scanning was 7 mSV.
10
Glenoid Bone Loss Measurement and Coracoid Graft Evaluation
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Images were obtained with a Philips Brilliance 64-slice CT scanner (Philips, Amsterdam, Netherlands) at, 250 mA, 120 Kvp, and slice thickness of 1mm). Preoperative glenoid bone loss was measured on a three-dimensional (3D) reconstruction en face view of the glenoid with the humeral head subtracted. The percentage of the glenoid bone loss was measured using the surface area method by the Image J software (National Institutes of Health, Bethesda, MA, USA) using the concept of the “best-fit circle.”
17 (link)
18 (link)
19 (link)
20 (link)
The postoperative CT scan was performed after a minimum of 1 year. Healing, position, and resorption of the graft were assessed. Healing was confirmed by bridging with bone between the bone block and the glenoid. The presence of a complete radiolucent line between the graft and the glenoid represented a nonunion, and the case was excluded. If the lateral cortex of the coracoid was > 1 mm medial or lateral to the articular surface of the glenoid, then the position of the coracoid was defined as medial or lateral overhanging position, respectively. Otherwise, if the lateral cortex of the coracoid was within 1 mm of the glenoid surface, the position of the coracoid was defined as flush. The classification system described by Zhu et al.
16 (link)
was used to evaluate coracoid graft resorption (
Table 1 ).
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Images were obtained with a Philips Brilliance 64-slice CT scanner (Philips, Amsterdam, Netherlands) at, 250 mA, 120 Kvp, and slice thickness of 1mm). Preoperative glenoid bone loss was measured on a three-dimensional (3D) reconstruction en face view of the glenoid with the humeral head subtracted. The percentage of the glenoid bone loss was measured using the surface area method by the Image J software (National Institutes of Health, Bethesda, MA, USA) using the concept of the “best-fit circle.”
17 (link)
18 (link)
19 (link)
20 (link)
The postoperative CT scan was performed after a minimum of 1 year. Healing, position, and resorption of the graft were assessed. Healing was confirmed by bridging with bone between the bone block and the glenoid. The presence of a complete radiolucent line between the graft and the glenoid represented a nonunion, and the case was excluded. If the lateral cortex of the coracoid was > 1 mm medial or lateral to the articular surface of the glenoid, then the position of the coracoid was defined as medial or lateral overhanging position, respectively. Otherwise, if the lateral cortex of the coracoid was within 1 mm of the glenoid surface, the position of the coracoid was defined as flush. The classification system described by Zhu et al.
16 (link)
was used to evaluate coracoid graft resorption (
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