{
  "ptid_time": "067_S_4072_2012-07-13",
  "img_path": "/data/qiuhui/data/adni/images/067_S_4072/2012-07-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,820 mm³, 6.8% below the reference mean. With a Z-score of -0.17 (43.3th percentile), this represents normal volume ; hippocampal volume measures 9,378 mm³, 22.0% above the reference mean. With a Z-score of 2.47 (99.3th percentile), this represents significant enlargement; whole brain volume measures 1,246,850 mm³, 21.2% above the reference mean. With a Z-score of 2.63 (99.6th percentile), this represents significant enlargement; entorhinal cortex volume measures 4,090 mm³, 5.1% above the reference mean. With a Z-score of 0.39 (65.3th percentile), this represents normal volume ; fusiform gyrus volume measures 19,744 mm³, 8.4% above the reference mean. With a Z-score of 0.95 (82.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,499 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.6th percentile), this represents normal volume . ",
  "text_data": "Age is 63.3 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows significant enlargement in the hippocampus and whole brain, with other regions within normal ranges. Cognitive scores (MMSE 30, MoCA 26) are normal to borderline, and the absence of APOE4 reduces genetic risk. No structural atrophy or cognitive deficits suggest dementia or MCI.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:36:58.407000"
}