{
  "ptid_time": "072_S_2027_2012-08-09",
  "img_path": "/data/qiuhui/data/adni/images/072_S_2027/2012-08-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,128 mm³, 27.8% below the reference mean. With a Z-score of -0.70 (24.3th percentile), this represents normal volume ; hippocampal volume measures 7,092 mm³, 7.7% below the reference mean. With a Z-score of -0.87 (19.3th percentile), this represents normal volume ; whole brain volume measures 961,041 mm³, 6.6% below the reference mean. With a Z-score of -0.82 (20.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,318 mm³, 14.8% below the reference mean. With a Z-score of -1.14 (12.6th percentile), this represents mild atrophy; fusiform gyrus volume measures 19,109 mm³, 4.9% above the reference mean. With a Z-score of 0.56 (71.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,771 mm³, 3.6% below the reference mean. With a Z-score of -0.32 (37.3th percentile), this represents normal volume . ",
  "text_data": "Age is 63.9 years. Gender is Female. Education: 14 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.04 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal values, with only mild atrophy in the entorhinal cortex. Cognitive scores (MMSE 30, MoCA 25) are within normal limits, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to mild entorhinal atrophy, but no significant cognitive or biomarker abnormalities)",
  "timestamp": "2025-07-26T09:10:25.233254"
}