{
  "ptid_time": "037_S_0377_2018-03-14",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0377/2018-03-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,418 mm³, 3.1% above the reference mean. With a Z-score of 0.29 (61.2th percentile), this represents normal volume ; hippocampal volume measures 6,654 mm³, 4.5% above the reference mean. With a Z-score of 0.49 (68.7th percentile), this represents normal volume ; whole brain volume measures 1,057,520 mm³, 5.6% above the reference mean. With a Z-score of 0.95 (82.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,788 mm³, 21.1% above the reference mean. With a Z-score of 1.08 (86.1th percentile), this represents mild enlargement; fusiform gyrus volume measures 15,880 mm³, 5.8% below the reference mean. With a Z-score of -0.67 (25.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,759 mm³, 0.5% below the reference mean. With a Z-score of -0.08 (47.0th percentile), this represents normal volume . ",
  "text_data": "Age is 91.3 years. Gender is Male. Education: 16 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 4.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges or mildly enlarged, with no significant atrophy. Cognitive scores (MMSE 29, MoCA 25) are within normal limits for age, and APOE4 status (heterozygous) does not strongly indicate dementia risk in isolation.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T06:28:01.015388"
}