{
  "ptid_time": "073_S_1357_2007-04-09",
  "img_path": "/data/qiuhui/data/adni/images/073_S_1357/2007-04-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 54,752 mm³, 42.1% above the reference mean. With a Z-score of 1.01 (84.4th percentile), this represents mild enlargement; hippocampal volume measures 7,420 mm³, 1.8% below the reference mean. With a Z-score of -0.18 (42.9th percentile), this represents normal volume ; whole brain volume measures 1,060,910 mm³, 1.7% below the reference mean. With a Z-score of -0.22 (41.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,169 mm³, 1.7% above the reference mean. With a Z-score of 0.11 (54.5th percentile), this represents normal volume ; fusiform gyrus volume measures 19,522 mm³, 3.6% above the reference mean. With a Z-score of 0.31 (62.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,864 mm³, 7.1% above the reference mean. With a Z-score of 0.64 (74.0th percentile), this represents normal volume . ",
  "text_data": "Age is 70.6 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. Medical history: Cardiovascular; Musculoskeletal; Renal-Genitourinary; Smoking; Malignancy; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 5.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is mildly enlarged (42.1% above reference mean, Z-score 1.01), but all other brain structures (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges. The MMSE score of 30 is intact, and APOE4 status (heterozygous) alone does not indicate impairment. No significant atrophy or cognitive deficits are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:35:59.358824"
}