{
  "ptid_time": "135_S_4281_2016-10-18",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4281/2016-10-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 35,814 mm³, 3.1% below the reference mean. With a Z-score of -0.08 (46.7th percentile), this represents normal volume ; hippocampal volume measures 7,116 mm³, 9.6% above the reference mean. With a Z-score of 0.77 (77.8th percentile), this represents normal volume ; whole brain volume measures 1,009,520 mm³, 8.8% above the reference mean. With a Z-score of 1.05 (85.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,114 mm³, 18.8% above the reference mean. With a Z-score of 1.02 (84.5th percentile), this represents mild enlargement; fusiform gyrus volume measures 15,700 mm³, 2.5% below the reference mean. With a Z-score of -0.19 (42.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,673 mm³, 3.6% above the reference mean. With a Z-score of 0.32 (62.5th percentile), this represents normal volume . ",
  "text_data": "Age is 82.5 years. Gender is Female. Education: 18 years. MMSE: 27.0. MoCA: 25.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (hippocampus, entorhinal cortex, whole brain, etc.) are within normal ranges or even mildly enlarged, with no significant atrophy. Cognitive scores (MMSE 27, MoCA 25) are within normal limits for age, and the absence of APOE4 further reduces Alzheimer's risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T15:33:05.567815"
}