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Related Concept Videos

The Electromagnetic Spectrum02:37

The Electromagnetic Spectrum

The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
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A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:

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Radiological Analysis of Interhemispheric Fissure: A Comprehensive Study.

Prabhjot Singh1, Renu Gupta2, Ashish K Nayyar2

  • 1Department of Anatomy, All India Institute of Medical Sciences, Bilaspur, Himachal Pradesh, India. sprabhjot74@yahoo.com.

Prague Medical Report
|January 2, 2026
PubMed
Summary
This summary is machine-generated.

This study measured the depth of the interhemispheric fissure in 90 participants using MRI scans. The morphometric data provides valuable insights for neurosurgeons performing the interhemispheric approach.

Keywords:
Interhemispheric fissureMRIMorphometryNeuroimaging

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Area of Science:

  • Neurosurgery
  • Neuroanatomy
  • Radiology

Background:

  • The interhemispheric fissure separates cerebral hemispheres, crucial for accessing midline brain structures.
  • Limited morphometric data exists for the interhemispheric fissure, impacting surgical planning.

Purpose of the Study:

  • To establish normative morphometric data for the interhemispheric fissure.
  • To provide anatomical references for neurosurgical procedures utilizing the interhemispheric approach.

Main Methods:

  • Magnetic resonance imaging (MRI) scans of 90 participants were analyzed.
  • Interhemispheric fissure depth was measured at six reference points.
  • Data was stratified by age groups and sex, with statistical analysis including unpaired t-tests and ANOVA.

Main Results:

  • Mean fissure depth varied across reference points, ranging from 35.08 ± 3.20 mm (frontal pole to genu) to 54.13 ± 5.96 mm (calcarine sulcus).
  • Statistical analysis revealed differences in depth across age groups.
  • Specific mean depths were recorded at the coronal suture (35.64 ± 4.27 mm) and parietooccipital sulcus (43.72 ± 3.63 mm).

Conclusions:

  • This study presents comprehensive morphometric data of the interhemispheric fissure.
  • The findings are directly applicable to neurosurgical planning and execution of the interhemispheric approach.
  • Understanding fissure depth variations aids in optimizing surgical access and minimizing risks.