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Fig. 3 | BMC Medical Imaging

Fig. 3

From: Amide proton transfer MRI differentiates between progressive multifocal leukoencephalopathy and malignant brain tumors: a pilot study

Fig. 3

MRI from a 75-year-old woman with PCNSL. a T2-weighted sequence, axial section, shows well-defined PCNSL with high SI in the left thalamus (white arrow). b T1-weighted sequence, axial section, shows well-defined PCNSL with isointensity in the left thalamus (white arrow). c 3D contrast-enhanced T1-weighted sequence, axial section, shows enhancement in the center of PCNSL (white arrows). d 3D ASL sequence, axial section, shows isointensity in PCNSL. e APT scout image, axial section, shows the ROI placed in PCNSL. f APT scout image, axial section, shows the ROI placed in normal-appearing tissue contralateral to lesion. g APT imaging shows high SI in PCNSL (white arrow). PCNSL primary central nervous system lymphoma, SI signal intensity, ASL arterial spin labelling, APT amide proton transfer

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