The largest database of trusted experimental protocols

Precedence 6

Manufactured by Philips
Sourced in United States

Precedence 6 is a lab equipment product from Philips. It is designed for routine laboratory tasks. The core function of Precedence 6 is to provide consistent and reliable performance in a laboratory setting.

Automatically generated - may contain errors

3 protocols using precedence 6

1

SPECT/CT Imaging of Radioiodinated Compounds in MI Rats

Check if the same lab product or an alternative is used in the 5 most similar protocols
The SPECT/CT system (Precedence 6; Philips) consisted of a variable-angle dual-detector with low-energy high-resolution collimators and a multislice spiral CT component optimized for rapid rotation. SPECT/CT imaging was conducted at 6 h after injection of 131I-rhein or 131I-Hyp (as a positive control agent), MI model rats and sham operation rats were anaesthetized with intraperitoneal injection of 10% chloral hydrate. The SPECT acquisition (128 × 128 matrix, 30 frames) was performed using 6° angular steps in a 25-s time frame. For CT (120 kV, 240 mA, 0.75 s/r), 1 mm slices were obtained. After reconstruction, SPECT images were corrected for attenuation and scatter. Both SPECT and CT axial 1-mm slices were generated using an Astonish bone application package and were transferred to a picture archiving and communication systems after generation of DICOM files. SPECT/CT images were fused using the Syntegra software.
+ Open protocol
+ Expand
2

Comparison of State-of-the-Art SPECT/CT Systems

Check if the same lab product or an alternative is used in the 5 most similar protocols
Data were acquired on five state-of-the-art SPECT/CT systems from three manufacturers: a Discovery NM/CT 670 Pro (GE Healthcare, Milwaukee, USA), a Precedence 6 (Philips Healthcare, Best, The Netherlands), a Symbia Intevo 6, and two Symbia T16’s (Siemens Healthineers, Erlangen, Germany) (Table 1).

Characteristics of all used SPECT/CT systems with LEHR collimator

SystemDiscovery NM/CT 670 ProPrecedence 6Symbia Intevo 6Symbia T16
Detector crystal3/8” NaI3/8” NaI3/8” NaI3/8” NaI
PMT*59555959
FOV*40 × 54 cm38.1 × 50.8 cm38.7 × 53.3 cm38.7 × 53.3 cm
Hole shapeHexagonalHexagonalHexagonalHexagonal
Number of holes (× 1000)Not specified86.4148148
Collimator hole diameter1.50 mm1.40 mm1.11 mm1.11 mm
Hole length35 mm32.8 mm24.05 mm24.05 mm
Septal thickness0.2 mm0.152 mm0.16 mm0.16 mm
Sensitivity for 99mTc @ 10 cm72 cps/MBq66 cps/MBq91 cps/MBq91 cps/MBq
Septal penetration @ 140 keV0.3%1.3%1.5%1.5%
Planar resolution7.4 mm7.4 mm7.5 mm7.5 mm
SPECT central resolution6.4 mm4.4 mm4.4 mm4.4 mm
SPECT peripheral radial resolution5.7 mm4.2 mm4.0 mm4.0 mm
SPECT peripheral tangential resolution5.1 mm4.3 mm3.9 mm3.9 mm

* (C)FOV (center) field of view, PMT photomultiplier tube

† Spatial resolution without scatter (LEHR collimator at 10 cm, (full width at half maximum (FWHM) in CFOV [mm], 3/8” crystal)

+ Open protocol
+ Expand
3

Noninvasive Cardiac Imaging in Myocardial Infarction

Check if the same lab product or an alternative is used in the 5 most similar protocols
Rats with MI or sham operation were anesthetized by intraperitoneal injection of 10 % chloral hydrate and placed in supine position. SPECT/CT imaging was performed at 4 h after intravenous administration of 7.4 MBq of [ 131 I]HD or [ 131 I]Hyp. The SPECT/CT system (Philips Precedence 6; Philips, Eindhoven, The Netherlands) consisted of a variable angle dual detector equipped with pinhole collimators and a multislice spiral CT component. Images were acquired by the following acquisition parameters: static image matrix size 128 × 128, continuous acquisition 30 frames × 25 s/ frame, and CT (120 kV, 240 mA). SPECT/CT images were fused using Syntegra software.
After the scan of SPECT/CT, rats were immediately sacrificed and organs of interest were collected, weighed, and counted for radioactivity as described above. The hearts isolated from rats with MI were rinsed with saline and cut into slices of 2 mm in the axial plane. After incubation in 2 % triphenyltetrazolium chloride (TTC) solution at 37 °C for 15 min, the TTC-stained slices were digitally photographed and then cut into 30-μm slices for autoradiography studies as described above.
+ Open protocol
+ Expand

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

Sign up now

Revolutionizing how scientists
search and build protocols!