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CAC

Coronary artery calcium (Agatston) categories

Risk categories based on the Agatston coronary artery calcium score.

vigenteCardiac imaging consensus1990CT
Fonte primária4 categorias
0No identifiable calcium1-99Mild100-399Moderate>=400Severe

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Categorias

Reescritas a partir da fonte e citadas
0
1 de 4

No identifiable calcium

Agatston score of 0: no identifiable calcified coronary plaque on the gated noncontrast CT (no calcific lesions reaching the detection threshold across the proximal coronary arteries).

CondutaWith a score of 0 and no other major risk factors, statin therapy is generally not indicated; the finding supports deferring or withholding pharmacologic prevention and reassessing later. (Final decisions follow ASCVD-prevention guidelines.)
Risco'No identifiable disease'; extremely low risk of cardiovascular events. A zero score is described as the most powerful negative predictor (the 'power of zero') in asymptomatic patients; the original 1990 cohort reported a negative predictive value of 94-100% for clinical coronary disease across the 40-69y groups.
verificadoQuantification of coronary artery calcium using ultrafast computed tomographySeverity label, risk interpretation and statin guidance from StatPearls 'Coronary Artery Calcification' (NBK519037), CAC interpretation / clinical-significance and management sections ('0 = No identifiable disease'; 'power of zero'; 'CAC = 0 with no other risk factors: no statin indicated'). NPV figure from Agatston 1990 abstract.
1-99
2 de 4

Mild

Agatston score 1-99: a small amount of calcified coronary plaque (mild calcified plaque burden).

CondutaStatin therapy is generally initiated in patients older than ~55 years; in younger patients (<55) statin may be withheld with reassessment in ~3-5 years.
Risco'Mild disease' / mild calcified plaque burden, conferring modestly increased cardiovascular risk above a zero score.
verificadoQuantification of coronary artery calcium using ultrafast computed tomographyStatPearls NBK519037, CAC severity bands and management ('1 to 99 = Mild disease'; 'CAC 1-99, age >55: initiate statin'; 'CAC 1-99, age <55: statin can be withheld; reassess in 3-5 years').
100-399
3 de 4

Moderate

Agatston score 100-399: a moderate amount of calcified coronary plaque (moderate calcified plaque burden).

CondutaStatin therapy is recommended (CAC over 100 generally warrants statin).
Risco'Moderate disease' / moderate calcified plaque burden, with progressively elevated cardiovascular risk relative to lower bands.
verificadoQuantification of coronary artery calcium using ultrafast computed tomographyStatPearls NBK519037, CAC severity bands and management ('100 to 399 = Moderate disease'; 'CAC >100: statin therapy recommended').
>=400
4 de 4

Severe

Agatston score 400 or higher: an extensive amount of calcified coronary plaque (severe calcified plaque burden).

CondutaStatin therapy is recommended (score over 100 warrants statin); a score over 400 is widely regarded as severe and may prompt further cardiovascular evaluation.
Risco'Severe disease' / extensive calcified plaque burden; a CAC over 400 is associated with worsened clinical outcomes and correlates with advanced/obstructive coronary disease.
verificadoQuantification of coronary artery calcium using ultrafast computed tomographyStatPearls NBK519037, CAC severity bands, clinical-significance and management ('Greater than 400 = Severe Disease'; 'A CAC score over 400 is associated with worsened clinical outcomes'; 'CAC >100: statin therapy recommended').
Lógica de decisão estruturada
{
  "categories": [
    "0",
    "1-99",
    "100-399",
    ">=400"
  ]
}

Referência, não é dispositivo médico. Confira a publicação primária vigente. O radiologista que assina o laudo continua autor e responsável.