{
  "ptid_time": "031_S_4194_2013-09-05",
  "img_path": "/data/qiuhui/data/adni/images/031_S_4194/2013-09-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,361 mm³, 55.5% below the reference mean. With a Z-score of -1.32 (9.4th percentile), this represents mild atrophy; hippocampal volume measures 8,355 mm³, 4.1% above the reference mean. With a Z-score of 0.41 (65.8th percentile), this represents normal volume ; whole brain volume measures 1,075,820 mm³, 5.2% below the reference mean. With a Z-score of -0.73 (23.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,183 mm³, 1.9% below the reference mean. With a Z-score of -0.13 (44.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,406 mm³, 17.6% below the reference mean. With a Z-score of -1.46 (7.2th percentile), this represents mild atrophy; middle temporal gyrus volume measures 18,461 mm³, 17.6% below the reference mean. With a Z-score of -1.45 (7.3th percentile), this represents mild atrophy. ",
  "text_data": "Age is 64.0 years. Gender is Male. Education: 16 years. MMSE: 27.0. MoCA: 27.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild atrophy in the ventricular volume, fusiform gyrus, and middle temporal gyrus, while hippocampal, whole brain, and entorhinal cortex volumes are within normal ranges. Cognitive scores (MMSE and MoCA) are normal, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy in some regions could suggest early changes, but cognitive performance remains intact)",
  "timestamp": "2025-07-26T04:47:41.431550"
}