{
  "ptid_time": "073_S_2153_2014-03-03",
  "img_path": "/data/qiuhui/data/adni/images/073_S_2153/2014-03-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,754 mm³, 4.6% below the reference mean. With a Z-score of -0.11 (45.6th percentile), this represents normal volume ; whole brain volume measures 925,782 mm³, 14.2% below the reference mean. With a Z-score of -1.85 (3.2th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,708 mm³, 9.6% below the reference mean. With a Z-score of -0.65 (25.8th percentile), this represents normal volume ; fusiform gyrus volume measures 17,567 mm³, 6.7% below the reference mean. With a Z-score of -0.57 (28.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,199 mm³, 10.0% below the reference mean. With a Z-score of -0.90 (18.4th percentile), this represents normal volume . ",
  "text_data": "Age is 79.6 years. Gender is Male. Education: 14 years. MMSE: 28.0. MoCA: 26.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The whole brain volume shows moderate atrophy (Z-score -1.85, 3.2th percentile), while other regions (ventricular, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges. Cognitive scores (MMSE 28, MoCA 26) are intact, and APOE4-negative status lowers Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (Moderate atrophy in whole brain volume is concerning but not yet reflected in cognitive decline; monitoring recommended).",
  "timestamp": "2025-07-26T09:36:36.268669"
}