{
  "ptid_time": "130_S_4883_2013-10-01",
  "img_path": "/data/qiuhui/data/adni/images/130_S_4883/2013-10-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,434 mm³, 41.4% below the reference mean. With a Z-score of -0.95 (17.1th percentile), this represents normal volume ; hippocampal volume measures 7,495 mm³, 5.3% above the reference mean. With a Z-score of 0.49 (68.8th percentile), this represents normal volume ; whole brain volume measures 994,298 mm³, 2.0% above the reference mean. With a Z-score of 0.25 (60.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,296 mm³, 10.3% below the reference mean. With a Z-score of -0.63 (26.4th percentile), this represents normal volume ; fusiform gyrus volume measures 17,662 mm³, 3.8% above the reference mean. With a Z-score of 0.35 (63.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,400 mm³, 11.6% above the reference mean. With a Z-score of 1.01 (84.4th percentile), this represents mild enlargement. ",
  "text_data": "Age is 77.1 years. Gender is Female. Education: 18 years. MMSE: 29.0. MoCA: 28.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges or show mild enlargement (middle temporal gyrus), with no significant atrophy. Cognitive scores (MMSE 29, MoCA 28) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T14:53:11.645388"
}