Patients were examined by Philips 64-slice spiral CT. Patients were asked to fast on the day of examination and reduce food intake within 24 hours before examination. Before the examination, intestinal lavage was performed twice for observation, and then, 90 mL 2.0-3.0% meglumine diatrizoate was used for retention enema. The metal objects carried by the patient were removed, and the patient laid supine on the examination table. The scanning duration was set to 4-8 s, and the scanning layer was 5 mm thick. After selecting the corresponding abdominal sequence, routine abdominal plain scan was performed first, and then, 20 mL 0.9% normal saline containing iohexol was injected into the elbow vein for enhanced scan. Patients allergic to iohexol were not subjected to enhanced scans. Finally, CT images were acquired.
64 slice spiral ct
Manufactured by Philips
Sourced in United States
The 64-slice spiral CT is a medical imaging device that captures high-resolution, cross-sectional images of the body. It uses a rotating X-ray tube and a set of detectors to generate detailed, three-dimensional images of the internal structures. The 64-slice capability allows for faster scanning and the generation of more detailed images compared to older CT scanner models.
Automatically generated - may contain errors
Lab products found in correlation
5 protocols using 64 slice spiral ct
1
Abdominal CT Imaging with Contrast
2
Quantitative CT Lung Assessment Protocol
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
A plain chest CT scan from the apex to the base of the lungs was performed during the end-inhale phase by Philips 64-slice spiral CT. The parameters of the scan were as follows: tube voltage– 120 kV; tube current– 150 mA; slice thickness– 5 mm; spiral pitch– 1.0; lung window– (width 1,400 Hu, level − 600 Hu); mediastinal window– (width 400 Hu; level 40 Hu).
The CT severity score (CTSS) was employed to evaluate the severity of patients’ images and was based on the degree of lobar involvement (0–25). Image processing: The CT images of all cases were evaluated by two radiologists at a level of attending physician or above (without knowing clinical information) to determine whether there was (1) ground glass opacity (GGO); (2) consolidation; (3) pleural effusion; (4) crazy-paving signs. All CT images were uploaded to the Deepwise MetAI system to quantitatively score the affected area of each lung lobe against the following criteria: 0 affected (score 0), < 5% affected (score 1); 5–25% affected (score 2); 26–49% affected (score 3); 50–75% affected (score 4) and > 75% affected (score 5). Each lung lobe scores 0–5, giving a total score of 0–25.
The CT severity score (CTSS) was employed to evaluate the severity of patients’ images and was based on the degree of lobar involvement (0–25). Image processing: The CT images of all cases were evaluated by two radiologists at a level of attending physician or above (without knowing clinical information) to determine whether there was (1) ground glass opacity (GGO); (2) consolidation; (3) pleural effusion; (4) crazy-paving signs. All CT images were uploaded to the Deepwise MetAI system to quantitatively score the affected area of each lung lobe against the following criteria: 0 affected (score 0), < 5% affected (score 1); 5–25% affected (score 2); 26–49% affected (score 3); 50–75% affected (score 4) and > 75% affected (score 5). Each lung lobe scores 0–5, giving a total score of 0–25.
3
Cryoablation for Tumor Management
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Cryoablation was performed under local anesthesia on an inpatient basis by physicians with more than 5 years of experience. Before the procedure, 10 mg diazepam was administered by intramuscular injection as basal sedation, supplemented with 5 mg analgesic morphine as required. The patients underwent continuous pulse oximetry and electrocardiography. A 64-slice spiral CT (120 kV, 250 mA, and 3-mm thickness; Philips Healthcare, Andover, MA, USA) was used for imaging guidance, localization, and intraoperative real-time monitoring of the ablation procedures to avoid injury to the surrounding critical structures.
A tabletop argon gas-based cryoablation apparatus (Precise Cryoablation System; Galil Medical, Yokneam, Israel) with 17-gauge cryoprobes was used to perform the procedure. The cryoprobes were placed into the lesion within 1.5 cm of the tumor edge, but with less than 2 cm intervals between the probes.20 (link) The number and type of probes used depended on the preoperative tumor volume in order to ensure producing precise ice balls that encompassed the target tumor. After the cryoprobes had been placed, the cryosurgery system was initiated to begin rapid freezing. A double freeze-thaw cycle (15 min/time: freeze for 10 min and thaw for 5 min) was performed according to the standard protocol. An additional cycle was necessary if the ablation zone was not satisfactory.
A tabletop argon gas-based cryoablation apparatus (Precise Cryoablation System; Galil Medical, Yokneam, Israel) with 17-gauge cryoprobes was used to perform the procedure. The cryoprobes were placed into the lesion within 1.5 cm of the tumor edge, but with less than 2 cm intervals between the probes.20 (link) The number and type of probes used depended on the preoperative tumor volume in order to ensure producing precise ice balls that encompassed the target tumor. After the cryoprobes had been placed, the cryosurgery system was initiated to begin rapid freezing. A double freeze-thaw cycle (15 min/time: freeze for 10 min and thaw for 5 min) was performed according to the standard protocol. An additional cycle was necessary if the ablation zone was not satisfactory.
4
Contrast-Enhanced Spiral CT Imaging Protocol
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The thin-slice CT scan was performed using a Philips 64-slice spiral CT with the following parameters: tube voltage of 120 kV, tube current of 200 mA, layer thickness of 1.0 mm, and screw pitch of 1. During the contrast-enhanced CT scan, the non-ionic contrast agent iohexol (320 mg/mL) was injected through the vein of the upper extremity at a flow rate of 3.0 mL/s, with a total volume of 80–100 mL. Hepatic portal venous phase dynamic imaging was performed during the contrast-enhanced CT scan, with the second phase imaging starting at 30 and 40 s after the initiation of the iohexol injection [13 (link),14 (link)]. The scan ranged from the diaphragm to the upper edge of the iliac wings, and the patients were asked to hold their breath before the scan was started. The scan data were reconstructed transversely using images with a thickness of 0.5–1 mm.
5
Ischemic Penumbra Assessment using CT Perfusion
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The 64-slice spiral CT of Philips was used for a conventional CT plain scan, and the area of interest of CTPI was determined according to the CT plain scan results. 40 mL of contrast agent gadodiamide injection was injected at 5mL/s through the median cubital vein indent needle with a double-barrel high-pressure syringe, followed by 20 mL normal saline at the same rate. After the contrast agent was injected for 5 s, the interested layer was scanned to obtain the time-density curve. The pseudocolor images of cerebral blood flow (CBF), blood volume (CBV), the mean transit time of the contrast agent (MTT), the peak time of the contrast agent (TTP), and other parameters were obtained by postprocessing with special perfusion CT software. The existence of ischemic penumbra was determined by the mismatch between CBF and CBV.
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!