{
  "ptid_time": "068_S_0473_2006-05-03",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0473/2006-05-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,741 mm³, 35.8% below the reference mean. With a Z-score of -0.86 (19.6th percentile), this represents normal volume ; hippocampal volume measures 8,379 mm³, 10.8% above the reference mean. With a Z-score of 1.06 (85.5th percentile), this represents mild enlargement; whole brain volume measures 1,116,240 mm³, 3.4% above the reference mean. With a Z-score of 0.44 (67.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,287 mm³, 4.5% above the reference mean. With a Z-score of 0.31 (62.1th percentile), this represents normal volume ; fusiform gyrus volume measures 18,366 mm³, 2.5% below the reference mean. With a Z-score of -0.21 (41.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 26,412 mm³, 23.8% above the reference mean. With a Z-score of 2.14 (98.4th percentile), this represents significant enlargement. ",
  "text_data": "Age is 72.6 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show normal or above-average volumes in key regions (hippocampus, entorhinal cortex, whole brain), with no significant atrophy. The MMSE score of 29 is within the normal range, and the APOE4 status (heterozygous) does not strongly indicate imminent cognitive decline in isolation.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:48:17.465927"
}