{
  "ptid_time": "041_S_5141_2017-08-18",
  "img_path": "/data/qiuhui/data/adni/images/041_S_5141/2017-08-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 38,213 mm³, 18.7% below the reference mean. With a Z-score of -0.54 (29.3th percentile), this represents normal volume ; hippocampal volume measures 7,507 mm³, 7.7% above the reference mean. With a Z-score of 0.67 (74.8th percentile), this represents normal volume ; whole brain volume measures 1,158,290 mm³, 12.5% above the reference mean. With a Z-score of 1.64 (95.0th percentile), this represents moderate enlargement; entorhinal cortex volume measures 5,418 mm³, 36.5% above the reference mean. With a Z-score of 2.39 (99.2th percentile), this represents significant enlargement; fusiform gyrus volume measures 19,410 mm³, 7.4% above the reference mean. With a Z-score of 0.64 (74.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,804 mm³, 1.8% below the reference mean. With a Z-score of -0.16 (43.5th percentile), this represents normal volume . ",
  "text_data": "Age is 80.7 years. Gender is Male. Education: 18 years. MMSE: 28.0. MoCA: 26.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges or show enlargement, with no significant atrophy. Cognitive scores (MMSE 28, MoCA 26) are within normal limits for age, and APOE4 status is negative, further reducing Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:27:28.310246"
}