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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
482
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
180
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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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...
81
Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

443
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
443
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

205
Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
205
Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

307
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
307

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Related Experiment Video

Updated: Sep 28, 2025

Laparoscopic Anatomical Hepatectomy Using Takasaki's Approach and Indocyanine Green Fluorescence Navigation
05:27

Laparoscopic Anatomical Hepatectomy Using Takasaki's Approach and Indocyanine Green Fluorescence Navigation

Published on: May 16, 2025

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Liver Surgery: Important Considerations for Pre- and Postoperative Imaging.

Luisa Leitão de Faria1, George Felipe Darce1, André Leopoldino Bordini1

  • 1From the Department of Radiology (L.L.d.F., A.L.B., I.S.d.O., C.D.O., M.d.S.R.) and Liver Surgery Unit, Discipline of Digestive Surgery, Department of Gastroenterology (G.F.D., P.H., V.B.J.), University of São Paulo School of Medicine, Ovídio Pires de Campos 75, São Paulo 05403-010, Brazil.

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|April 1, 2022
PubMed
Summary

Radiologists play a crucial role in liver surgery by evaluating patient anatomy and liver function. Understanding surgical techniques and potential complications aids in decision-making and improves patient outcomes.

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Area of Science:

  • Radiology
  • Surgical Oncology
  • Hepatobiliary Surgery

Background:

  • Liver surgery offers curative potential for primary liver neoplasms and metastases.
  • Increasing liver surgeries worldwide are associated with significant morbidity.
  • Radiologists' understanding of surgical aspects is vital for patient management.

Purpose of the Study:

  • To highlight the essential role of radiologists in liver surgery.
  • To emphasize the importance of preoperative evaluation and complication assessment.
  • To guide radiologists in supporting surgical decision-making.

Main Methods:

  • Review of liver surgery principles, including terminology and techniques.
  • Discussion of resectability and unresectability criteria.
  • Analysis of common postoperative complications and radiologic evaluation.

Main Results:

  • Preoperative anatomic evaluation by radiologists is key for surgical planning and risk reduction.
  • Radiologists provide critical data on liver volume, steatosis, cirrhosis, and portal hypertension.
  • Common complications include vascular, biliary, infectious issues, liver failure, and recurrence.

Conclusions:

  • Accurate radiologic assessment is fundamental for successful liver surgery.
  • Radiologists' input is essential for determining surgical candidacy and optimizing outcomes.
  • Comprehensive understanding of postoperative complications aids in timely management.