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Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
Histology of the Uterus01:19

Histology of the Uterus

The uterine wall consists of three histological layers: the perimetrium, myometrium, and endometrium. The outermost perimetrium is a thin, serous membrane connected with the broad ligament on the sides, which helps anchor the uterus in the pelvic cavity. The thickest layer, myometrium, is mainly made up of smooth muscle tissue bundles. Its contractions are vital in facilitating the expulsion of the uterine lining, fetus, and placenta during menstruation and childbirth.
The endometrium is the...

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Related Experiment Video

Updated: May 25, 2026

Three-dimensional Rendering and Analysis of Immunolabeled, Clarified Human Placental Villous Vascular Networks
09:33

Three-dimensional Rendering and Analysis of Immunolabeled, Clarified Human Placental Villous Vascular Networks

Published on: March 29, 2018

Imaging of the placenta with pathologic correlation.

Dustin Nguyen1, Cameran Nguyen, Margaret Yacobozzi

  • 1Department of Radiology, Tufts School of Medicine, Baystate Medical Center, Springfield, MA 01199, USA. Dustinforward@gmail.com

Seminars in Ultrasound, CT, and MR
|January 24, 2012
PubMed
Summary
This summary is machine-generated.

Placental imaging is crucial for diagnosing conditions affecting fetal and maternal health. Ultrasonography is the primary diagnostic tool, with MRI as a secondary option for evaluating placental pathology.

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Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye
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Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
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Published on: September 5, 2011

Area of Science:

  • Obstetrics and Gynecology
  • Radiology
  • Fetal Medicine

Background:

  • The placenta is vital for fetal development, providing nourishment and protection.
  • Placental abnormalities can lead to significant maternal and fetal morbidity and mortality.
  • Understanding placental anatomy and physiology is essential for diagnosing pathologies.

Purpose of the Study:

  • To outline placental physiology, anatomy, and variant anatomy.
  • To detail common placental conditions impacting mother and fetus.
  • To review imaging modalities for diagnosing placental pathologies.

Main Methods:

  • Review of placental physiology, anatomy, and variant anatomy.
  • Description of various placental conditions including molar pregnancies, hematoma, abruption, previa, accreta, vasa previa, choriocarcinoma, and retained products of conception.
  • Discussion of imaging techniques: ultrasonography, magnetic resonance imaging (MRI), and computed tomography (CT).

Main Results:

  • Ultrasonography is the definitive imaging modality for most placental conditions.
  • Magnetic resonance imaging (MRI) serves as an adjunctive tool in diagnosis.
  • Computed tomography (CT) has limited use, primarily in trauma and tumor staging.

Conclusions:

  • Accurate diagnosis of placental conditions through appropriate imaging is critical for patient management.
  • Ultrasonography is the cornerstone of placental imaging.
  • Knowledge of placental pathology and imaging is essential for obstetric care.