Can CT Scans be used in Diagnosing COVID-19?

COVID-19 is often diagnosed through RT-PCR testing. Now some experts are arguing that CT scans can help to diagnose Covid-19. But others disagree with them.
The covid-19 epidemic continues to spread all over the world, killing many people as nations strive to find cure or vaccination. Diagnosing people with SARS-CoV-2 early is key to combating the spread of the disease. Once you are diagnosed, you can limit your physical contact with other people and slow down its spread.
To many people, reverse transcriptase polymerase chain reaction (RT-PCR) is the gold standard for Covid-19 diagnosis. RT-PCR is a molecular biology technique that identifies material specific to the SARS-CoV-2 virus. However, RT-PCR does not provide 100% accuracy, which has raised concerns about the false-negative and false-positive results.
So, is it possible that CT scans can serve as an adjunct to RT-PCR diagnosis? CT scans combine a series of images that reflect abnormal cells' metabolic activity in the body.

Potential Side Effects of PET Scans

When is PET Imaging Conducted?

A positron emission tomography scan is often used to help doctors diagnose, monitor, and treat several cancers, including lung, lymphomas, and head and neck cancer. They also help them find tumor locations and determine if treatment is working for patients.
A PET scanner uses a radioactive tracer to show the abnormal (cancerous) cells in the body. Doctors can examine every part of a patient's body and identify cancer. Known as Fluorodeoxyglucose (FDG), the radioactive tracer is often attached to fluorine-18. When the glucose is absorbed by body cells, the fluorine-18 will break down and release gamma rays and positrons.
Cancer cells are always aggressive, and they grow and multiply fast as they take in more sugar. On PET scans, cancerous cells will glow brighter.
Here is why PET scans are conducted:
·Sometimes doctors perform PET scans on neurology and cardiology patients.
·And whenever a patient has symptoms, doctors will use a PET scan to determine the proper test needed to identif…

Breast Cancer False Positives: How to Decrease Them

Breast cancer is a huge problem in the health sector. Technology has not solved this problem. Annual screening and self-examination are the best methods to detect cancer early. Cancer screening has become a hot topic and is sometimes controversial, but what remains is that early diagnosis and treatment is beneficial to the patient.
So why do false positives occur? This is a question many ask, especially since we live in the age of technology. This is because the technology used in screening is out of date. Mammograms pick up both benign and malignant tumors, it is up to the doctor to figure out which is which.
While a PET scan is more detailed in the images it produces thus offering better clarity on whether the tumor is malignant or not.
Most women start screening for breast cancer at the age 40. Of these women, most are at the risk of developing breast cancer. These chances are increased if they are screened later on after 40.
Biopsies remain the best way to tell if a mass is cancerous…

CT Scans Can Help Predict CRS Recurrence with Nasal Polyps

A ratio of the sinus scores can be calculated based on CT imaging to help predict the recurrence of chronic rhinosinusitis (CRS) with nasal polyps accurately.
According to new findings;
·CRS with nasal polyps will always recur even after sinus surgery. The recurrence rate is at 21% within 8 years. The tissue eosinophil counts and proportions, and the presence of eosinophilicmucin have already been used as recurrence markers but the tests are often invasive or require surgery. Investigators suggest that CT scans have the potential to predict the CRS recurrence with nasal polyps.
·The current study is investigating the importance of CT scans in predicting recurrence in CRS with nasal polyps patients who are to undergo the endoscopic functional sinus surgery. The patients already took a CT scan before surgery.
·Two radiologists scored the scans and also assessed the maxillary sinus score (M score) as well as the total ethmoid sinus score (E score) of both sides of sinuses. The scores were us…

PET Scans Measuring Glucose More Effective at Assessing Alzheimer’s Progression than Amyloid Scans, Study Finds

New research has found that measuring glucose PET scans are better indicators of the advancement of Alzheimer's disease compared to amyloid PET scans. A medical trial targeting beta-amyloid plaque was carried out. It indicates that toxic proteins and shortage of glucose in the brain as people get old can lead to Alzheimer's disease.
The research carried out in Perelman School of Medicine in the University of Pennsylvania, and Thomas Jefferson University shows that FDG-PET makes a better diagnosis on the progress of Alzheimer's disease and MCI compared to florbetapir-PET scans which measure amyloid levels. The FDG PET scan checks the brain's glucose intake and its effect on neurons, thus providing the doctor with a better understanding of Alzheimer treatments work.
FDG-PET and florbetapir-PET scans are recommendable diagnosis methods for Alzheimer’s disease. They also appear to show a form of cognitive impairment. However, studies reveal that FDG-PET is much precise, a…

Studies Report that the New Use of PET Scan Radiotracer May Help Identify Early Signs of MS Progression

Multiple Sclerosis (MS) is a disease that damages the central nervous system, thus disrupting communication between the brain and spinal cord. A radiotracer called [F-18] PBR06 can detect changes in brain matter through positron emission tomography (PET). [F-18]PBR06 has the potential to detect the disease before patients show any symptoms giving doctors the ability to treat the condition.
MS progression’s identity procedures
·Some patients may show signs of the disorder, though in most cases, the doctors will suspect the presence of the disease and order for tests. [F-18] PBR06 is used to image the patient and give insights into neurodegeneration and inflammations. MS progression will interfere with the signal connecting white matter of the brain. The disability is caused by differences in grey matter, specifically through activation of microglia. Microglia is the central nervous system's immune cells.
·The radiotracer uncovers evidence of inflammation in the white matter of the b…