{
  "ptid_time": "153_S_4133_2012-02-09",
  "img_path": "/data/qiuhui/data/adni/images/153_S_4133/2012-02-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 49,650 mm³, 5.6% above the reference mean. With a Z-score of 0.16 (56.5th percentile), this represents normal volume ; hippocampal volume measures 7,530 mm³, 8.1% above the reference mean. With a Z-score of 0.70 (75.7th percentile), this represents normal volume ; whole brain volume measures 1,051,410 mm³, 2.2% above the reference mean. With a Z-score of 0.28 (61.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,295 mm³, 8.2% above the reference mean. With a Z-score of 0.54 (70.5th percentile), this represents normal volume ; fusiform gyrus volume measures 17,804 mm³, 1.4% below the reference mean. With a Z-score of -0.13 (45.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,480 mm³, 11.4% above the reference mean. With a Z-score of 1.03 (84.7th percentile), this represents mild enlargement. ",
  "text_data": "Age is 80.2 years. Gender is Male. Education: 18 years. MMSE: 27.0. MoCA: 25.0. 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 show mild enlargement (middle temporal gyrus), with no significant atrophy. Cognitive scores (MMSE 27, MoCA 25) are within normal limits for age, and APOE4 status (heterozygous) does not strongly indicate imminent decline.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T17:11:22.472094"
}