{
  "ptid_time": "027_S_6577_2018-09-20",
  "img_path": "/data/qiuhui/data/adni/images/027_S_6577/2018-09-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,100 mm³, 16.4% below the reference mean. With a Z-score of -0.39 (34.8th percentile), this represents normal volume ; hippocampal volume measures 8,550 mm³, 6.5% above the reference mean. With a Z-score of 0.65 (74.2th percentile), this represents normal volume ; whole brain volume measures 1,134,780 mm³, 0.0% above the reference mean. With a Z-score of 0.00 (50.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,035 mm³, 5.3% below the reference mean. With a Z-score of -0.37 (35.6th percentile), this represents normal volume ; fusiform gyrus volume measures 21,881 mm³, 9.9% above the reference mean. With a Z-score of 0.82 (79.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,290 mm³, 13.9% below the reference mean. With a Z-score of -1.15 (12.6th percentile), this represents mild atrophy. ",
  "text_data": "Age is 66.8 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 28.0. Logical Memory: 16.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.04 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges except for mild atrophy in the middle temporal gyrus. Cognitive scores (MMSE 29, MoCA 28) are intact, and APOE4 status (heterozygous) does not strongly indicate elevated risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild middle temporal gyrus atrophy is noted but not accompanied by cognitive deficits or other significant atrophy)",
  "timestamp": "2025-07-26T04:13:45.403131"
}