We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us

Download Mobile App


ATTENTION: Due to the COVID-19 PANDEMIC, many events are being rescheduled for a later date, converted into virtual venues, or altogether cancelled. Please check with the event organizer or website prior to planning for any forthcoming event.

New 10-Minute CT Scan Detects and Cures Commonest Cause of High Blood Pressure

By MedImaging International staff writers
Posted on 18 Jan 2023
Print article
A ten-minute scan enables detection and cure of the commonest cause of high blood pressure (Photo courtesy of Pexels)
A ten-minute scan enables detection and cure of the commonest cause of high blood pressure (Photo courtesy of Pexels)

Hypertension (high blood pressure) is a condition that requires life-long treatment through drugs with its cause remaining unknown in most patients. A research group had previously found that in 5-10% of people suffering from Hypertension, the culprit was a gene mutation in the adrenal glands that resulted in the production of excessive levels of the steroid hormone, aldosterone. This steroid hormone leads to salt being retained in the body, thereby driving blood pressure levels higher. Patients having excessive aldosterone levels in their blood exhibit resistance to treatment with commonly used Hypertension drugs, increasing their risk of heart attack and stroke. Now, the same research group has demonstrated that by using a new type of CT scan to light up tiny nodules in a hormone gland and removing them, it is possible to cure high blood pressure. These nodules can be found in one-in-twenty people suffering from high blood pressure.

The research led by doctors at Queen Mary University of London (London, UK) has solved a 60-year problem of how the hormone producing nodules can be detected without a complicated catheter study that is performed in few hospitals and has a high failure rate. The research also found that upon combining it with a urine test, the scan can detect a group of patients who come off all their blood pressure medicines after treatment. After discovering that their high blood pressure was caused by aldosterone, the doctors conducted a study of the new scan that involved 128 people. The scan found that in two thirds of patients with elevated aldosterone levels, the secretion was from a benign nodule in just one of the adrenal glands, which can be easily removed.

The scan uses a very short-acting dose of metomidate, a radioactive dye that sticks only to the aldosterone-producing nodule. The scan was not only as accurate as the old catheter test, but also quick, painless and technically successful in all the patients. Until now, the catheter test was not capable of predicting which patients could be fully cured of hypertension by surgically removing the gland. In contrast, a ‘hot nodule’ on the scan combined with a urine steroid test detected 18 of the 24 patients who achieved normal blood pressure off all their drugs.

“These aldosterone-producing nodules are very small and easily overlooked on a regular CT scan,” said Professor Morris Brown, co-senior author of the study and Professor of Endocrine Hypertension at Queen Mary University of London. “When they glow for a few minutes after our injection, they are revealed as the obvious cause of Hypertension, which can often then be cured. Until now, 99% are never diagnosed because of the difficulty and unavailability of tests. Hopefully this is about to change.”

Gold Supplier
Ultrasound Phantom
Multi-Purpose Multi-Tissue Ultrasound Phantom - Model 040GSE
Flat Panel Detector (FPD)
DRX-LC Detector
Mobile X-Ray Unit
Exairo Plus
Gold Supplier
Conductive Gel

Print article
Sun Nuclear -    Mirion
FIME - Informa



view channel
Image: BiOI ruby-like crystals can improve medical imaging safety by lowering intensities of harmful X-rays (Photo courtesy of University of Cambridge)

Sustainable Solar Cell Material Could Revolutionize Medical Imaging

The use of X-rays for internal body imaging has dramatically changed non-invasive medical diagnostics. Yet, the high dose of X-rays required for these imaging techniques, due to the poor performance of... Read more


view channel
Image: An international, multi-institutional project aims to develop a radically new MRI scanner that is compact and transportable (Photo courtesy of U of M Medical School)

Compact and Portable MRI Scanner to Expand Existing Imaging Capabilities and Accessibility

Magnetic Resonance Imaging (MRI) technology which provides detailed images of the human brain is instrumental in understanding brain functions and diagnosing medical conditions. MRI has become indispensable... Read more


view channel
Image: A new study has shown the value of endoscopic ultrasound in NSCLC (Photo courtesy of Freepik)

Endoscopic Ultrasound Can Provide Value in NSCLC, Finds Study

The usefulness of confirmatory mediastinoscopy following tumor-negative results on endoscopic ultrasound still remains debatable among researchers. This procedure is often employed for mediastinal staging... Read more

Nuclear Medicine

view channel
Image: New imaging method offers potential for diagnosing, staging, and treating multiple types of cancer (Photo courtesy of SNMMI)

New Imaging Method Superior for Diagnosing Multiple Types of Cancer

Cancer-associated fibroblasts play a significant role in tumor development, migration, and progression. A subset of these fibroblasts expresses fibroblast activation protein (FAP), a protein prominently... Read more

Imaging IT

view channel
Image: The new Medical Imaging Suite makes healthcare imaging data more accessible, interoperable and useful (Photo courtesy of Google Cloud)

New Google Cloud Medical Imaging Suite Makes Imaging Healthcare Data More Accessible

Medical imaging is a critical tool used to diagnose patients, and there are billions of medical images scanned globally each year. Imaging data accounts for about 90% of all healthcare data1 and, until... Read more

Industry News

view channel
Image: The global AI-enabled medical imaging solutions market is expected to reach USD 18.36 billion in 2032 (Photo courtesy of Freepik)

Global AI-Enabled Medical Imaging Solutions Market Driven by Need for Early Disease Detection

The AI-enabled medical imaging solutions market is currently in its developmental stages, following the significant role of AI-based tools in combating the COVID-19 pandemic. The pandemic saw an upswing... Read more
Copyright © 2000-2023 Globetech Media. All rights reserved.