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Table 3 Common imaging tests according to the source of infection

From: The Japanese Clinical Practice Guidelines for Management of Sepsis and Septic Shock 2024

Region

Suspected source of infection

Primary imaging tests

Ultrasonography

X-ray

CT

MRI

Head and neck

Brain abscess

  

〇 (Contrast-enhanced imaging)

〇

Cervical abscess

〇

 

〇 (Contrast-enhanced imaging)

 

Chest

Empyema

〇

〇

〇 (Contrast-enhanced imaging)

 

Infective endocarditis

〇a

 

CT (Cardiac CT/18F-FDG PET/CT)

 

Abdomen

Peritonitis

〇

 

〇b

 

Cholecystitis/cholangitis

〇

 

〇 (Contrast-enhanced imaging)

〇

Obstructive urinary tract infection

〇

 

〇

 

Other

Necrotic soft tissue infections

  

〇

〇

  1. Circles indicate appropriate primary imaging tests
  2. 18F-FDG PET/CT positron emission computed tomography with 18F-fluorodeoxyglucose, CT computed tomography, MRI magnetic resonance imaging
  3. aTransesophageal echocardiography is indicated if clinically suspected or in patients with prosthetic valves or other implanted devices. [43]
  4. bContrast-enhanced imaging is recommended for the evaluation of organ ischemia, vascular lesions, and acute pancreatitis. [44]