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Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

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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...
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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...
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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...
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Imaging Studies I: CT and MRI01:14

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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.
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Imaging Studies III: Computed Tomography01:27

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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...
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Related Experiment Video

Updated: Dec 23, 2025

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions
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Ovarian solid tumors: MR imaging features with radiologic-pathologic correlation.

Naoko Mukuda1, Mana Ishibashi2, Atsushi Murakami2

  • 1Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, 36-1, Nishi-cho, Yonago, Tottori, 683-8504, Japan. naoko.mukuda@tottori-u.ac.jp.

Japanese Journal of Radiology
|April 29, 2020
PubMed
Summary
This summary is machine-generated.

Differentiating benign from malignant ovarian tumors is crucial. Magnetic resonance (MR) imaging, alongside clinical data, aids diagnosis, especially in atypical cases not following standard signal intensity rules.

Keywords:
Magnetic resonance imagingOvarySolid tumors

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Area of Science:

  • Radiology
  • Oncology
  • Pathology

Background:

  • Ovarian solid tumors present diverse histological types, including benign and malignant neoplasms.
  • Non-neoplastic lesions can mimic tumors, necessitating accurate differentiation.
  • Distinguishing benign from malignant ovarian masses is clinically critical.

Purpose of the Study:

  • To explore the role of magnetic resonance (MR) imaging in diagnosing ovarian solid tumors.
  • To highlight characteristic MR imaging findings that reflect specific pathological features.
  • To emphasize the importance of understanding exceptional cases that deviate from typical imaging patterns.

Main Methods:

  • Review of MR imaging features of ovarian solid tumors, including T2-weighted imaging (T2WI), diffusion-weighted imaging (DWI), and dynamic contrast-enhanced (DCE) MR imaging.
  • Correlation of imaging findings with histopathological diagnoses.
  • Analysis of atypical presentations and their diagnostic implications.

Main Results:

  • Typical benign tumors often show low signal intensity (SI) on T2WI and DWI, with gradual enhancement on DCE-MR imaging.
  • Certain ovarian tumors exhibit characteristic MR imaging findings that aid in precise diagnosis.
  • MR imaging can provide additional information on secondary uterine changes.

Conclusions:

  • MR imaging is a valuable tool for differentiating benign and malignant ovarian tumors, particularly when considering characteristic pathological features.
  • Understanding atypical imaging patterns and integrating clinical and laboratory data are essential for accurate diagnosis.
  • Further research into exceptional cases can refine diagnostic accuracy in ovarian oncology.