{
  "ptid_time": "002_S_4213_2019-10-03",
  "img_path": "/data/qiuhui/data/adni/images/002_S_4213/2019-10-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 43,296 mm³, 17.1% above the reference mean. With a Z-score of 0.46 (67.8th percentile), this represents normal volume ; hippocampal volume measures 6,935 mm³, 6.8% above the reference mean. With a Z-score of 0.54 (70.6th percentile), this represents normal volume ; whole brain volume measures 941,217 mm³, 1.4% above the reference mean. With a Z-score of 0.17 (56.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,798 mm³, 38.6% above the reference mean. With a Z-score of 2.08 (98.1th percentile), this represents significant enlargement; fusiform gyrus volume measures 19,839 mm³, 23.1% above the reference mean. With a Z-score of 1.74 (95.9th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 19,109 mm³, 6.0% above the reference mean. With a Z-score of 0.53 (70.3th percentile), this represents normal volume . ",
  "text_data": "Age is 86.0 years. Gender is Female. Education: 14 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements (ventricular, hippocampal, whole brain, and middle temporal gyrus) are within normal ranges, while the entorhinal cortex and fusiform gyrus show significant enlargement. Cognitive scores (MMSE 30, MoCA 29) are intact, and there is no APOE4 risk allele. No structural atrophy or cognitive deficits are present.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T20:21:43.389902"
}