{
  "ptid_time": "133_S_0792_2007-09-25",
  "img_path": "/data/qiuhui/data/adni/images/133_S_0792/2007-09-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,344 mm³, 49.8% below the reference mean. With a Z-score of -1.19 (11.7th percentile), this represents mild atrophy; hippocampal volume measures 8,155 mm³, 7.9% above the reference mean. With a Z-score of 0.77 (77.9th percentile), this represents normal volume ; whole brain volume measures 1,073,100 mm³, 0.6% below the reference mean. With a Z-score of -0.08 (47.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,703 mm³, 9.7% below the reference mean. With a Z-score of -0.66 (25.5th percentile), this represents normal volume ; fusiform gyrus volume measures 16,590 mm³, 11.9% below the reference mean. With a Z-score of -1.02 (15.5th percentile), this represents mild atrophy; middle temporal gyrus volume measures 20,987 mm³, 1.6% below the reference mean. With a Z-score of -0.15 (44.1th percentile), this represents normal volume . ",
  "text_data": "Age is 74.5 years. Gender is Male. Education: 16 years. MMSE: 29.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild atrophy in ventricular volume and fusiform gyrus, but hippocampal and whole brain volumes are within normal ranges. The MMSE score of 29 is normal, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy in some regions could warrant monitoring, but no significant cognitive impairment is present).",
  "timestamp": "2025-07-26T15:26:49.822705"
}