{
  "ptid_time": "094_S_1267_2007-03-16",
  "img_path": "/data/qiuhui/data/adni/images/094_S_1267/2007-03-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 19,980 mm³, 48.1% below the reference mean. With a Z-score of -1.15 (12.4th percentile), this represents mild atrophy; hippocampal volume measures 8,656 mm³, 14.5% above the reference mean. With a Z-score of 1.42 (92.2th percentile), this represents mild enlargement; whole brain volume measures 1,195,620 mm³, 10.8% above the reference mean. With a Z-score of 1.40 (91.9th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,329 mm³, 5.6% above the reference mean. With a Z-score of 0.38 (64.7th percentile), this represents normal volume ; fusiform gyrus volume measures 19,227 mm³, 2.1% above the reference mean. With a Z-score of 0.18 (57.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,953 mm³, 2.9% above the reference mean. With a Z-score of 0.26 (60.2th percentile), this represents normal volume . ",
  "text_data": "Age is 73.2 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Smoking; Malignancy; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular atrophy but otherwise normal-to-above-average volumes in key regions (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus). The MMSE score is perfect (30/30), and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T10:17:43.474041"
}