{
  "ptid_time": "128_S_4553_2012-05-19",
  "img_path": "/data/qiuhui/data/adni/images/128_S_4553/2012-05-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,216 mm³, 27.4% below the reference mean. With a Z-score of -0.69 (24.6th percentile), this represents normal volume ; hippocampal volume measures 7,610 mm³, 1.0% below the reference mean. With a Z-score of -0.11 (45.7th percentile), this represents normal volume ; whole brain volume measures 1,127,880 mm³, 9.6% above the reference mean. With a Z-score of 1.19 (88.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,443 mm³, 11.6% below the reference mean. With a Z-score of -0.90 (18.5th percentile), this represents normal volume ; fusiform gyrus volume measures 18,430 mm³, 1.2% above the reference mean. With a Z-score of 0.14 (55.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,744 mm³, 6.0% above the reference mean. With a Z-score of 0.53 (70.2th percentile), this represents normal volume . ",
  "text_data": "Age is 68.5 years. Gender is Female. Education: 17 years. Handedness: Right. Race: White. Medical history: Cardiovascular. MMSE: 30.0. MoCA: 30.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.14 SUVR (normal ); Amyloid beta: 1221.00 pg/mL (normal ); Total tau: 273.40 pg/mL (normal ); Phosphorylated tau: 23.20 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volumes (including hippocampal and entorhinal cortex) are within normal ranges or mildly enlarged, with no significant atrophy. Biomarkers (Aβ, T-tau, P-tau, AV45) are normal, and cognitive scores (MMSE, MoCA) are intact. APOE4-negative status further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T14:01:23.642531"
}