{
  "ptid_time": "032_S_4429_2012-08-09",
  "img_path": "/data/qiuhui/data/adni/images/032_S_4429/2012-08-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 41,906 mm³, 8.8% above the reference mean. With a Z-score of 0.21 (58.3th percentile), this represents normal volume ; hippocampal volume measures 7,810 mm³, 3.3% above the reference mean. With a Z-score of 0.32 (62.7th percentile), this represents normal volume ; whole brain volume measures 1,107,390 mm³, 2.6% above the reference mean. With a Z-score of 0.34 (63.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,796 mm³, 17.0% above the reference mean. With a Z-score of 1.15 (87.5th percentile), this represents mild enlargement; fusiform gyrus volume measures 21,161 mm³, 12.3% above the reference mean. With a Z-score of 1.05 (85.3th percentile), this represents mild enlargement; middle temporal gyrus volume measures 24,018 mm³, 12.6% above the reference mean. With a Z-score of 1.13 (87.0th percentile), this represents mild enlargement. ",
  "text_data": "Age is 77.5 years. Gender is Male. Education: 14 years. MMSE: 29.0. MoCA: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are all within normal ranges or mildly enlarged, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 25) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T05:05:10.476946"
}