{
  "ptid_time": "941_S_6094_2017-10-23",
  "img_path": "/data/qiuhui/data/adni/images/941_S_6094/2017-10-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,393 mm³, 40.0% below the reference mean. With a Z-score of -1.00 (15.8th percentile), this represents mild atrophy; hippocampal volume measures 7,823 mm³, 1.8% above the reference mean. With a Z-score of 0.20 (58.0th percentile), this represents normal volume ; whole brain volume measures 900,656 mm³, 12.5% below the reference mean. With a Z-score of -1.55 (6.0th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,472 mm³, 10.8% below the reference mean. With a Z-score of -0.84 (20.1th percentile), this represents normal volume ; fusiform gyrus volume measures 17,397 mm³, 4.5% below the reference mean. With a Z-score of -0.50 (30.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,306 mm³, 5.9% below the reference mean. With a Z-score of -0.53 (30.0th percentile), this represents normal volume . ",
  "text_data": "Age is 69.6 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 28.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild to moderate atrophy in ventricular and whole brain volumes, but hippocampal, entorhinal cortex, fusiform gyrus, and middle temporal gyrus volumes are within normal ranges. Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (Atrophy in some regions could suggest early changes, but cognitive performance remains strong and there are no other clinical indicators of impairment.)",
  "timestamp": "2025-07-26T17:46:07.020791"
}