You searched for "PET-CT"

129 results found

Best timing for post-treatment PET-CT scans in head and neck cancer

Unfortunately we know that the recurrence rate for head and neck cancer can be high, up to 30-50% in some series. These recurrences tend to occur within the first two years following treatment. Optimal surveillance strategies to detect recurrences early...

PET-CT for malignant nasopharyngeal lesions

This retrospective Turkish review of 92 patients aimed to determine the ability of fluorine 18-fluorodeoxyglucose (FDG) maximum standardised uptake value (SUVmax) on positron emission tomography/computerised tomography (PET/CT) to differentiate benign processes and malignant nasopharyngeal lesions. The authors retrospectively reviewed the...

Head and neck cancer and PET-CT

Positron emission tomography-computed tomography (PET-CT) is an imaging technique in which abnormalities of tissue metabolism are precisely superimposed onto the anatomy. It relies on the premise that malignant cells are more metabolically active compared with non-malignant cells. On this basis,...

What to do with incidental findings on FDG PET/CT?

18F-fluoro-deoxy-glucose positron emission tomography/computed tomography (FDG PET/CT) is commonly used in head and neck cancer staging. This investigation frequently identifies incidental findings unrelated to the index head and neck cancer. To assess the nature of these incidental findings, notes of...

Choline PET-CT: an accurate diagnostic tool for the detection of parathyroid adenoma?

Hyperparathyroidism (HPT) is an endocrine disorder characterised by an increase in the secretion of parathyroid hormone (PTH), with a resulting increase in calcium plasma levels, which can cause renal lithiasis, fractures, and osteoporosis, the most frequent symptoms of the disease....

Identifying clinically useful salivary substitutes

This in vitro study analysed the efficacy of salivary substitutes used in the treatment of xerostomia following head neck irradiation. The researchers applied the products under evaluation onto a synthetic surface and onto cellular gingival models. The products were then...

Margin control using optical techniques in head and neck surgery

Emerging optical techniques such as high-resolution microendoscopy (HRME) are currently being examined for their reliability in discriminating benign from neoplastic epithelium. These techniques may offer the potential to detect the margin of an upper aerodigestive tract tumour in a non-invasive...

The effects of hormonal changes across menstrual cycle on high frequency auditory thresholds

Physiological changes during the menstrual cycle are well documented; do these changes extend to the auditory system? Lalsa Shilpa Perepa and Rewa Indurkar delve into the literature to find the evidence. Menstrual cycle refers to a series of changes that...

Which scan for children with bilateral sensorineural hearing loss? Keeping the debate going…

There have been years of debate about the appropriate imaging strategy for children with bilateral sensorineural hearing loss. For those children undergoing cochlear implant surgery, CT may provide some assistance to surgical planning, although this is not necessary in children...

Management of oral white patches with malignant potential

This paper focuses on a rare but aggressive form of leukoplakia with malignant potential and is an important reminder of the need for specialist management to those in allied specialties such as ENT that may initially be referred these oral...

A new biomarker for chronic rhinosinusitis

This Chinese study looked at the feasibility of periostin (usually found in bone and lung tissue) as a biomarker for chronic rhinosinusitis. They sampled ethmoid mucosa in 12 patients with chronic rhinosinusitis without nasal polyposis (CRSsNP) and 25 patients with...

Mobile apps for audiological screening

This article summarises the newly emerging mobile applications for audiological screening. The purpose is to try to reduce the time between individuals identifying a hearing problem and seeking help for it. These apps are gaining in popularity and recognition. The...