CT Flashcards by Barha Aftab

Q

Systematisk gennemgang af CT:

Patientidentifikation:
1) Modalitet og skanningsområde: fx CT thorax og abdomen
2) Kontrastfase: med/uden kontrast (i.v. eller p.o.), én eller flere faser (tom/arteriel/venøs)
3) Plan: aksial (transversal) / coronal (frontalt) / sagittal (longitudinal)
4) Skanningsvindue: bløddelsvindue / lungevindue / knoglevindue / anden
Systematisk gennemgang af organer/strukturer
Konklusion / Diagnose

A

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Q

Kontrastfaser:
- De fleste CT-skanninger er venøse. CTC bruger dog tom-skanning pga. blødningsmistanke
- Aorta og nyrernes kontrastopladning kan bruges til at skelne mellem de forskellige kontrastfaser

Tom-kontrastfase: 1
Arteriel-kontrastfase: 2
Venøse-kontrastfase: 3

A

1: ingen kontrast (fx CTC)
2: tydelig lys aorta
3: mere ensartede (lyse) nyrer

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Q

Skanningsorientering – Planer:
- Aksial (transversal): op/ned
- Coronal (frontalt): for/bag
- Sagittal (longitudinal): højre/venstre

A

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Q

Skanningsvindue:
- De fleste CT-skanninger er i bløddelsvindue

Bløddelsvindue: altid
Lungevindue: ved thorax
Knoglevindue: ved traume / mistanke om knoglepatologi

A

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Q

Nævn basale organer på CT:

A

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Q

Nævn basale organer på CT:

A

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Q

Akut appendicitis:

A

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Q

Diagnose?

A

Akut appendicitis

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Q

Infarkt (apopleksi/TCI):

A

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Q

Diagnose?

A

Infarkt (apopleksi/TCI)

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Q

Hjerneblødning:

A

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Q

Diagnose?

A

Subarachnoidalblødning (SAH)

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Q

Diagnose?

A

Intracerebral hæmoragi (ICH)

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Q

Lungeemboli:
- Embolier (mørke) omsluttet af blod (lyst)

A

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Q

Diagnose?

A

Lungeemboli

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Q

Diagnose?

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A

Lungeemboli

Q

Hydronefrose:

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A

Q

Diagnose?

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A

Hydronefrose

Q

Miltraume:

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A

Miltraume:

Q

Diagnose?

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A

Miltraume

Q

Perforeret ulcus:

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A

Perforeret ulcus:

Q

Diagnose?

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A

Perforeret ulcus

Q

Lungecancer:

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A

Q

Diagnose?

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A

Lungecancer

**Lungefibrose**: Karakteristisk: * **Bikagetegning (honeycombing)** (rød pil) * **Traktionsbronkiektasier** (rød cirkel) * Stribeformede fortætninger * Lokalisation: subpleuralt og basalt bilateralt

Diagnose?

Lungefibrose

**Sarkoidose**: - Uregelmæssige små knuder (granulomer) med hovedsagelig central fordeling

Diagnose?

Sarkoidose