๐Ÿซ€ Conotruncal Anomalies

A Structured Approach in Fetal Ultrasound

Conotruncal anomalies are disorders involving the outflow tract and great arteries.

๋Œ€ํ‘œ์ ์œผ๋กœ:

  • Tetralogy of Fallot (TOF)
  • Double Outlet Right Ventricle (DORV)
  • Transposition of the Great Arteries (TGA)
  • Truncus arteriosus
  • Pulmonary atresia
  • Interrupted aortic arch

์ด๋“ค์€ ๋ชจ๋‘

๐Ÿ‘‰ Outflow tract์™€ great vessel alignment ์ด์ƒ์ด ํ•ต์‹ฌ์ž…๋‹ˆ๋‹ค.

๐Ÿ”ฅ Step 1: ์ •์ƒ ๊ตฌ์กฐ๋ฅผ ์ดํ•ดํ•˜์ž

์ •์ƒ ์‹ฌ์žฅ์—์„œ๋Š”:

  • LV โ†’ Aorta
  • RV โ†’ Pulmonary artery
  • Great vessels๋Š” ์„œ๋กœ ๊ต์ฐจ(crossing pattern)

์ด โ€œcrossingโ€์ด ๊นจ์ง€๋ฉด conotruncal anomaly๋ฅผ ์˜์‹ฌํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ”Ž Step 2: ๊ตฌ์กฐ์  ๋ถ„๋ฅ˜

1๏ธโƒฃ Pulmonary Obstruction Dominant

  • TOF
  • Severe pulmonary stenosis
  • Pulmonary atresia

๐Ÿ‘‰ PA๊ฐ€ ์ž‘์•„์ง

๐Ÿ‘‰ Ao dominance

๐Ÿ‘‰ 3VT์—์„œ asymmetric V

2๏ธโƒฃ Abnormal Origin

  • DORV
  • TGA

๐Ÿ‘‰ Great vessels ํ‰ํ–‰

๐Ÿ‘‰ LV ์—ฐ๊ฒฐ ํ™•์ธ ํ•„์ˆ˜

3๏ธโƒฃ Single Outflow Tract

  • Truncus arteriosus

๐Ÿ‘‰ 3VT์—์„œ 2-vessel appearance

๐Ÿ‘‰ ๋‘ ๋Œ€ํ˜ˆ๊ด€ ๋ถ„๋ฆฌ ์•ˆ ๋จ

4๏ธโƒฃ Arch Abnormality

  • Right aortic arch
  • Double aortic arch
  • Interrupted aortic arch

๐Ÿ‘‰ 3VT์—์„œ U-shape ๋˜๋Š” ring

๐Ÿ‘‰ Trachea ์œ„์น˜ ์ค‘์š”

๐Ÿง  ์‹ค์ „ ์ ‘๊ทผ ์•Œ๊ณ ๋ฆฌ์ฆ˜

When 3VT is abnormal:

1๏ธโƒฃ PA ํฌ๊ธฐ ํ™•์ธ

2๏ธโƒฃ V-shape ์œ ์ง€ ์—ฌ๋ถ€ ํ™•์ธ

3๏ธโƒฃ Great vessel crossing ์žˆ๋Š”๊ฐ€?

4๏ธโƒฃ LVOT ์ง์ ‘ ์—ฐ๊ฒฐ ํ™•์ธ

5๏ธโƒฃ Ductus flow ๋ฐฉํ–ฅ ํ™•์ธ

๐Ÿ—‚ ํ•œ ์žฅ ์ •๋ฆฌ ํ‘œ

CategoryKey Problem ๋Œ€ํ‘œ์งˆํ™˜
ObstructionPA narrowingTOF, PA
Origin errorBoth from RV or switchedDORV, TGA
Single trunkNo separationTruncus
Arch anomalyLaterality issueRAA, DAA

๐Ÿ”ฅ ์ž„์ƒ ํ•ต์‹ฌ

3VT๋Š” ์งˆํ™˜๋ช…์„ ์ฃผ์ง€ ์•Š๋Š”๋‹ค.

ํ•˜์ง€๋งŒ โ€œ๋ฌธ์ œ๊ฐ€ ์–ด๋””์— ์žˆ๋Š”์ง€โ€๋ฅผ ์•Œ๋ ค์ค€๋‹ค.

Conotruncal anomaly๋Š”

ํฌ๊ธฐ ๋ฌธ์ œ์ธ์ง€,

๊ธฐ์› ๋ฌธ์ œ์ธ์ง€,

๋ฐฐ์—ด ๋ฌธ์ œ์ธ์ง€,

๋‹จ์ผ ๊ตฌ์กฐ ๋ฌธ์ œ์ธ์ง€๋กœ ๋‚˜๋ˆ  ์ƒ๊ฐํ•˜๋ฉด

ํ›จ์”ฌ ์ •๋ฆฌ๊ฐ€ ์‰ฝ์Šต๋‹ˆ๋‹ค.

ํ•จ๊ป˜ ๋ณด๋ฉด ์ข‹์€๊ธ€

ํƒœ์•„ ์‹ฌ์žฅ์ดˆ์ŒํŒŒ ์–ด๋””๊นŒ์ง€ ๋ณด๋ฉด ์ข‹์„๊นŒ?

๊ธ€์“ด์ด

UltraLog

I share practical fetal ultrasound knowledge based on real clinical experience.