{
  "ptid_time": "041_S_1418_2018-08-23",
  "img_path": "/data/qiuhui/data/adni/images/041_S_1418/2018-08-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 51,980 mm³, 6.3% above the reference mean. With a Z-score of 0.57 (71.7th percentile), this represents normal volume ; hippocampal volume measures 6,187 mm³, 2.9% below the reference mean. With a Z-score of -0.31 (37.8th percentile), this represents normal volume ; whole brain volume measures 997,678 mm³, 0.4% below the reference mean. With a Z-score of -0.07 (47.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,224 mm³, 18.5% below the reference mean. With a Z-score of -0.95 (17.1th percentile), this represents normal volume ; fusiform gyrus volume measures 17,026 mm³, 1.0% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,783 mm³, 5.7% below the reference mean. With a Z-score of -0.87 (19.2th percentile), this represents normal volume . ",
  "text_data": "Age is 92.5 years. Gender is Male. Education: 12 years. MMSE: 29.0. MoCA: 28.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only mild deviations (e.g., entorhinal cortex and middle temporal gyrus slightly below reference means but still classified as normal). Cognitive scores (MMSE 29, MoCA 28) are high, indicating no significant impairment, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:07:03.014306"
}