Pituitary Gland MRI Imaging Protocol

All the enrolled patients underwent plain and enhanced MRI of the pituitary gland with the 3.0-T MRI scanner (Siemens Healthcare, Erlangen, Germany) within 1 week before surgery. A 24-channel head/neck coil was used. The coronal, sagittal, and three-dimensional (3D) enhanced T1-weighted images (T1WIs) and T2-weighted images (T2WIs) were obtained. The imaging protocol included pre-contrast and contrast-enhanced coronal T1 sequences (repetition time (TR)/echo time (TE), 400/6.7 ms; slice thickness, 2 mm; 12 sections; field of view (FOV), 200 mm; flip angle, 150°; bandwidth, 399 Hz/pixel; pixel resolution, 256), contrast-enhanced sagittal T1 sequences (TR/TE, 440/3.5 ms; slice thickness, 2 mm; 12 sections; FOV, 240 mm; flip angle, 150°; bandwidth, 380 Hz/pixel; pixel resolution, 320), coronal T2 sequences (TR/TE, 3000/103 ms; slice thickness, 2 mm; 12 sections; FOV, 200 mm; flip angle, 150°; bandwidth, 260 Hz/pixel; pixel resolution, 320), and sagittal T2 sequences (TR/TE, 4000/110 ms; slice thickness, 2 mm; 12 sections; FOV, 260 mm; flip angle, 150°; bandwidth, 223 Hz/pixel; pixel resolution, 320). Gadopentetate dimeglumine or gadobenate dimeglumine was used as the contrast agent, and the dose was 0.2 mL/kg of body weight. T2WIs were obtained before the injection of the contrast agent.

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Wu J., Zhang F., Huang Y., Wei L., Mei T., Wang S., Zeng Z, & Wang W. (2024). Predictive value of cyst/tumor volume ratio of pituitary adenoma for tumor cell proliferation. BMC Medical Imaging, 24, 69.

Publication 2024

3.0-T MRI scanner

Corresponding Organization : First Affiliated Hospital of Wenzhou Medical University

Other organizations : First Affiliated Hospital of Fujian Medical University, Fujian Medical University, Shenzhen University

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Variable analysis

independent variables

MRI Scanning technique (3.0-T MRI scanner from Siemens Healthcare, Erlangen, Germany)
MRI sequences (coronal, sagittal, and 3D enhanced T1-weighted images (T1WIs) and T2-weighted images (T2WIs))
Contrast agent (gadopentetate dimeglumine or gadobenate dimeglumine)
Contrast agent dose (0.2 mL/kg of body weight)

dependent variables

Pituitary gland imaging findings

control variables

Time between MRI scan and surgery (within 1 week)
MRI scanner (3.0-T MRI scanner)
MRI coil (24-channel head/neck coil)
Slice thickness (2 mm)
Number of sections (12 sections)
Field of view (200 mm for coronal, 240 mm for sagittal)
Flip angle (150°)
Bandwidth (399 Hz/pixel for coronal T1, 380 Hz/pixel for sagittal T1, 260 Hz/pixel for coronal T2, 223 Hz/pixel for sagittal T2)
Pixel resolution (256 for coronal T1, 320 for sagittal T1, 320 for coronal T2, 320 for sagittal T2)

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