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

9.1K
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...
9.1K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

443
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...
443
Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

7.5K
The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
7.5K
Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

11.7K
Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
11.7K
Spongy Bone01:09

Spongy Bone

8.5K
All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...
8.5K
Compact Bone01:27

Compact Bone

17.3K
Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
17.3K

You might also read

Related Articles

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

Sort by
Same author

Feasibility and preliminary effects of combined exercise and nutritional intervention on muscle mass preservation during chemoradiotherapy for head and neck cancer: a prospective study.

Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer·2026
Same author

Laryngeal Edema Due to Cervical Hematoma Following Submandibular Liposuction: A Case Report.

Cureus·2026
Same author

Development of a novel prognostic assessment tool for recurrent respiratory papillomatosis.

BMC medicine·2026
Same author

Vestibular rehabilitation strategies of the Japan Society for Equilibrium Research.

Auris, nasus, larynx·2026
Same author

Age-related decline in temporal sound processing: insights from envelope steepness map in the mouse auditory cortex.

Frontiers in aging neuroscience·2026
Same author

Gel Immersion vs. Water Immersion Endoscopic Ultrasound for Visualization of the Duodenal Papilla and Periampullary Lesions: A Dual-Center Retrospective Study With Blinded Evaluation of Archived Videos.

Journal of hepato-biliary-pancreatic sciences·2026

Related Experiment Video

Updated: Feb 23, 2026

Outer-Boundary Assisted Segmentation and Quantification of Trabecular Bones by an Imagej Plugin
09:36

Outer-Boundary Assisted Segmentation and Quantification of Trabecular Bones by an Imagej Plugin

Published on: March 14, 2018

9.8K

Bone Density Development of the Temporal Bone Assessed by Computed Tomography.

Kuniyuki Takahashi1, Yuka Morita, Shinsuke Ohshima

  • 1Department of Otolaryngology Head and Neck Surgery, Niigata University Faculty of Medicine, Niigata, Japan.

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|September 12, 2017
PubMed
Summary

Temporal bone regions mature at different rates, influencing how acute mastoiditis spreads in children. Understanding these bone maturation differences is key to predicting disease patterns.

More Related Videos

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

1.7K
Assessment of Bone Fracture Healing Using Micro-Computed Tomography
12:04

Assessment of Bone Fracture Healing Using Micro-Computed Tomography

Published on: December 9, 2022

2.6K

Related Experiment Videos

Last Updated: Feb 23, 2026

Outer-Boundary Assisted Segmentation and Quantification of Trabecular Bones by an Imagej Plugin
09:36

Outer-Boundary Assisted Segmentation and Quantification of Trabecular Bones by an Imagej Plugin

Published on: March 14, 2018

9.8K
Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

1.7K
Assessment of Bone Fracture Healing Using Micro-Computed Tomography
12:04

Assessment of Bone Fracture Healing Using Micro-Computed Tomography

Published on: December 9, 2022

2.6K

Area of Science:

  • Otolaryngology
  • Pediatric Otology
  • Radiology

Background:

  • Acute mastoiditis spreading patterns differ with age.
  • Infants: lateral spread with retroauricular swelling.
  • Older children: medial spread with intracranial complications.

Purpose of the Study:

  • Investigate regional differences in temporal bone maturation.
  • Determine if bone maturation influences acute mastoiditis spread.
  • Correlate bone density with age across temporal bone regions.

Main Methods:

  • Computed tomography (CT) scans of 80 participants (3 months-42 years).
  • Measured bone density (Hounsfield units) in otic capsule (OC), lateral mastoid surface (LS), posterior cranial fossa (PCF), and middle cranial fossa (MCF).
  • Developed bone density curves and calculated age of maturation (>1000 HU).

Main Results:

  • Otic capsule (OC) is mature at birth.
  • Lateral surface (LS), posterior cranial fossa (PCF), and middle cranial fossa (MCF) mature rapidly in early childhood.
  • Maturation ages: LS (1.7 years), PCF (3.9 years), MCF (10.8 years).

Conclusions:

  • First report demonstrating regional temporal bone maturation differences.
  • These differences may explain age-related variations in acute mastoiditis spread.
  • Highlights the importance of age and regional bone development in mastoiditis.