Normal Abdominal and Pelvic CT Anatomy
Über den Vortrag
Der Vortrag „Normal Abdominal and Pelvic CT Anatomy“ von Hetal Verma, MD ist Bestandteil des Kurses „Year 4 – Selective Sub-Internship“. Der Vortrag ist dabei in folgende Kapitel unterteilt:
- Lung and Bone Windows
- Liver Anatomy
- Spleen, Pancreas, Gallbladder and Kidneys
- Vessels - Arterial and Venous Phase Imaging
- Bowel
Quiz zum Vortrag
What segments of the liver does the falciform ligament divide?
- The medial and lateral segments of the left lobe of the liver
- The upper and lower segments of the liver
- The caudate and quadrate lobes of the liver
- The anterior and posterior segments of the right lobe of the liver
- The caudate lobe from the rest of the liver
Why are "lung windows" used in reviewing a CT scan of the abdomen?
- To check for free intraperitoneal air in the abdomen
- To evaluate the portion of the lungs that extends into the abdomen
- To check for pulmonary emboli
- To check for lung cancer metastases to the abdominal organs
- Lung windows are only used in CT of the chest, not CT of the abdomen.
What is the width of a normal pancreatic duct?
- 3–4 mm
- 2–3 cm
- 1–2 mm
- >5 mm
- 0.5–1 mm
Which organs are retroperitoneal?
- Kidneys and ureters
- Liver and gallbladder
- Head and tail of the pancreas
- Small intestines and colon
- Spleen and uterus
Why should contrast be avoided while assessing for renal calculi?
- In the delayed phase, the contrast in the renal pelvis obscures the evaluation of a stone.
- The contrast remains much longer in the kidneys due to the stone and thus can cause damage to the kidney.
- The density of the renal stone and the portal vein during the portal venous phase is the same making it difficult to assess for the stone.
- The renal stone absorbs the contrast material to a large extent and then dissolves into smaller particles causing obstruction of the kidneys.
- In the arterial phase, the stone tends to move further into the renal medulla leading to papillary ischemia.
What is TRUE regarding imaging of the liver and spleen?
- The density of the liver and spleen are equal on CT scan imaging.
- 80% of the vascular supply to the liver is from the hepatic artery and 20% is from the portal vein.
- The liver has a bumpy contour.
- The spleen is better visualized on a CT scan than ultrasound.
- The spleen is about 6 to 10 cm in size.
A newborn child with ambiguous genitalia is suspected to have congenital adrenal hyperplasia. A CT scan of the abdomen is most likely to show abnormality in which site and organ?
- An upside-down "Y-shaped" structure on the top of the kidneys
- A "bean-shaped" structure below the spleen
- An upside-down "V-shaped" structure attached to the spleen
- A "V-shaped" structure located posterior to the inferior vena cava
- A "balloon-shaped" structure attached to the liver
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Dozent des Vortrages Normal Abdominal and Pelvic CT Anatomy
Hetal Verma, MD
Dr. Hetal Verma is a Clinical Instructor of Radiology and the Co-Director of the Radiology Cambridge Integrated Clerkship at Harvard Medical School, MA, USA.
She is a graduate of the University of Massachusetts Medical School and completed her Breast Imaging fellowship at the Massachusetts General Hospital. Since 2012, she is the Director of Breast Imaging at Cambridge Health Alliance Radiology, a teaching affiliate of Harvard Medical School.
She is passionate about women's health and has vast experience in teaching medical students and residents at Harvard Medical School.
Within Lecturio, Dr. Verma teaches courses on Radiology.
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