{
  "ptid_time": "012_S_4545_2013-03-25",
  "img_path": "/data/qiuhui/data/adni/images/012_S_4545/2013-03-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,240 mm³, 9.4% below the reference mean. With a Z-score of -0.23 (40.7th percentile), this represents normal volume ; hippocampal volume measures 8,331 mm³, 8.4% above the reference mean. With a Z-score of 0.94 (82.7th percentile), this represents normal volume ; whole brain volume measures 1,182,720 mm³, 14.9% above the reference mean. With a Z-score of 1.86 (96.8th percentile), this represents moderate enlargement; entorhinal cortex volume measures 3,952 mm³, 1.5% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; fusiform gyrus volume measures 18,841 mm³, 3.5% above the reference mean. With a Z-score of 0.39 (65.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 25,111 mm³, 22.4% above the reference mean. With a Z-score of 1.99 (97.7th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 68.0 years. Gender is Female. Education: 19 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within or above the normal range, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 25) are normal or only mildly reduced (MoCA borderline), and there is no APOE4 risk allele.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T23:14:33.292886"
}