Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Computed Tomography01:10

Computed Tomography

8.3K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
8.3K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

368
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
368
Peripheral Artery Disease V: Postoperative Nursing Management01:23

Peripheral Artery Disease V: Postoperative Nursing Management

416
During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
416
Design Example: Traverse Angle Computations01:25

Design Example: Traverse Angle Computations

341
Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
341
Area Computation by the Alternative Coordinate Method01:24

Area Computation by the Alternative Coordinate Method

632
The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
632
Positron Emission Tomography01:29

Positron Emission Tomography

7.2K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
7.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Single-level anterior cervical discectomy and fusion for degenerative disc disease: a retrospective, two-center comparative analysis of stand-alone cage versus cage-plate constructs.

European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·2026
Same author

Does timing matter? Unlocking the value of repeated MRI in the early phases after severe traumatic brain injury.

Acta neurochirurgica·2026
Same author

HERMES-24 score for outcome prediction in large vessel occlusion stroke: Real-world data from the Austrian stroke network.

International journal of stroke : official journal of the International Stroke Society·2026
Same author

Balancing Time and Risk: Temporary Arterial Occlusion in Middle Cerebral Artery Aneurysm Surgery.

Brain sciences·2026
Same author

The Modified Spinal Instability Spondylodiscitis Score (mSISS): Adaptation and Validation of a Novel Classification System for Spinal Instability in Spondylodiscitis.

Global spine journal·2026
Same author

Impact of postoperative blood pressure management on postoperative hemorrhage after resection of intraparenchymal brain tumors.

Acta neurochirurgica·2026

Related Experiment Video

Updated: Feb 2, 2026

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis
06:56

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis

Published on: September 22, 2023

1.7K

Routine Postoperative Computed Tomography Is Not Helpful After Elective Craniotomy.

Christian F Freyschlag1, Ricarda Gruber1, Marlies Bauer1

  • 1Department of Neurosurgery, Medical University of Innsbruck, Innsbruck, Austria.

World Neurosurgery
|November 23, 2018
PubMed
Summary

Routine postoperative computed tomography (CT) scans are not essential for clearing patients after elective craniotomy. Clinical assessment alone is sufficient for safe intensive care unit transfer, avoiding unnecessary imaging costs.

Keywords:
Brain tumorCT scanComplicationsElective craniotomy

More Related Videos

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
12:24

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers

Published on: July 17, 2012

12.9K
Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

16.1K

Related Experiment Videos

Last Updated: Feb 2, 2026

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis
06:56

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis

Published on: September 22, 2023

1.7K
Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
12:24

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers

Published on: July 17, 2012

12.9K
Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

16.1K

Area of Science:

  • Neurosurgery
  • Radiology
  • Intensive Care Medicine

Background:

  • Routine next-day postoperative computed tomography (CT) is standard for intensive care unit (ICU) transfer after elective craniotomy.
  • The clinical value of this policy is frequently debated, with concerns that rare but severe events may be missed in smaller studies.

Purpose of the Study:

  • To evaluate the necessity and diagnostic yield of routine postoperative CT scans in a large cohort of patients undergoing elective craniotomy for tumors, epilepsy, or vascular conditions.

Main Methods:

  • A retrospective review of 660 patients who underwent elective craniotomy.
  • Postoperative CT scans were analyzed by a neuroradiologist blinded to clinical data.
  • Medical records were reviewed for arterial hypertension and clinical deterioration.

Main Results:

  • In 45.8% of patients, CT showed asymptomatic blood. Twenty-one patients (3.6%) had radiographic mass effect, with 11 requiring surgery. Arterial hypertension occurred in 1.3% and was linked to revision surgery (P=0.018). The overall revision rate was 2.7%.
  • No serious hematomas requiring intervention were identified solely by CT that were not clinically apparent.
  • All patients requiring revision for hematoma presented with new neurological deficits before CT.

Conclusions:

  • Routine postoperative CT scans are not necessary for identifying serious postoperative hematomas after elective craniotomy.
  • Safe transfer from the ICU is possible based on uneventful clinical observation and neurological assessment, without routine imaging.