{
  "ptid_time": "094_S_2201_2012-01-19",
  "img_path": "/data/qiuhui/data/adni/images/094_S_2201/2012-01-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,031 mm³, 34.4% above the reference mean. With a Z-score of 0.86 (80.6th percentile), this represents normal volume ; hippocampal volume measures 7,946 mm³, 3.4% above the reference mean. With a Z-score of 0.38 (64.9th percentile), this represents normal volume ; whole brain volume measures 1,029,250 mm³, 0.0% above the reference mean. With a Z-score of 0.00 (50.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,348 mm³, 14.0% below the reference mean. With a Z-score of -1.08 (13.9th percentile), this represents mild atrophy; fusiform gyrus volume measures 18,937 mm³, 4.0% above the reference mean. With a Z-score of 0.45 (67.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,619 mm³, 4.4% below the reference mean. With a Z-score of -0.39 (34.8th percentile), this represents normal volume . ",
  "text_data": "Age is 64.7 years. Gender is Female. Education: 18 years. Handedness: Right. Race: More than one race. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Gastrointestinal; Major Surgical Procedures. MMSE: 29.0. MoCA: 26.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Total tau: 196.20 pg/mL (normal ); Phosphorylated tau: 16.99 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show mild atrophy in the entorhinal cortex (Z-score -1.08, 14% below reference), which is an early marker of Alzheimer's pathology, but other regions (hippocampus, whole brain, fusiform gyrus) are normal. Cognitive scores (MMSE 29, MoCA 26) are borderline for MCI but still within normal range for age. Biomarkers (normal tau, no APOE4) do not strongly suggest neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline MoCA and isolated entorhinal atrophy, but overall preserved cognition and normal biomarkers)",
  "timestamp": "2025-07-26T10:25:08.822327"
}