{
  "ptid_time": "135_S_4722_2012-08-15",
  "img_path": "/data/qiuhui/data/adni/images/135_S_4722/2012-08-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,644 mm³, 14.8% above the reference mean. With a Z-score of 0.37 (64.4th percentile), this represents normal volume ; hippocampal volume measures 8,372 mm³, 8.9% above the reference mean. With a Z-score of 1.00 (84.2th percentile), this represents mild enlargement; whole brain volume measures 1,043,820 mm³, 1.4% above the reference mean. With a Z-score of 0.18 (57.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,157 mm³, 18.9% below the reference mean. With a Z-score of -1.46 (7.1th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,086 mm³, 6.2% below the reference mean. With a Z-score of -0.70 (24.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,277 mm³, 1.2% below the reference mean. With a Z-score of -0.11 (45.8th percentile), this represents normal volume . ",
  "text_data": "Age is 68.0 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Endocrine-Metabolic. MMSE: 28.0. MoCA: 29.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.08 SUVR (normal ); Total tau: 227.60 pg/mL (normal ); Phosphorylated tau: 18.55 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The entorhinal cortex shows mild atrophy (Z-score -1.46, 7.1th percentile), which is a potential early marker of Alzheimer's pathology. However, hippocampal volume is mildly enlarged (Z-score 1.00), and other brain regions are within normal ranges. Cognitive scores (MMSE 28, MoCA 29) are intact, and biomarkers (T-tau, P-tau, AV45) are normal.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to conflicting entorhinal atrophy but otherwise normal findings",
  "timestamp": "2025-07-26T15:42:04.315691"
}