{
  "ptid_time": "072_S_4394_2012-03-28",
  "img_path": "/data/qiuhui/data/adni/images/072_S_4394/2012-03-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,501 mm³, 15.8% above the reference mean. With a Z-score of 0.36 (64.1th percentile), this represents normal volume ; hippocampal volume measures 6,791 mm³, 4.5% below the reference mean. With a Z-score of -0.42 (33.8th percentile), this represents normal volume ; whole brain volume measures 1,033,900 mm³, 6.1% above the reference mean. With a Z-score of 0.77 (77.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,532 mm³, 3.8% below the reference mean. With a Z-score of -0.24 (40.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,838 mm³, 4.8% above the reference mean. With a Z-score of 0.44 (67.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,492 mm³, 12.1% above the reference mean. With a Z-score of 1.05 (85.4th percentile), this represents mild enlargement. ",
  "text_data": "Age is 75.9 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 4.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.06 SUVR (normal ); Amyloid beta: 1086.00 pg/mL (normal ); Total tau: 165.20 pg/mL (normal ); Phosphorylated tau: 14.77 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (including hippocampal and entorhinal cortex) fall within normal ranges, with only mild enlargement in the middle temporal gyrus. Cognitive testing (MMSE 30, MoCA 25) is within normal limits for age, and biomarkers (Aβ, tau, AV45) are normal. No significant atrophy or pathological markers are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:21:33.687264"
}