ARTICOLI CORRELATI

Application of Stents (Coronary Angioplasty)

A coronary stent is a medical "device," that is, an instrument used in Coronary Angioplasty to clear the way for possible blockages in the coronary arteries by following invasive techniques having the goal of restoring regular blood circulation within the heart by ensuring its proper function.

Hypertrophic cardiomyopathy

Hypertrophic cardiomyopathy is a condition in which the heart muscle thickens, becoming hypertrophic, in the absence of dilation of the ventricles. Hypertrophic cardiomyopathy affects men and women equally. It is

Working professions in mitral valve disease

It is well known that risk factors for heart disease include habits such as excessive alcohol use, such as smoking, a high-protein and high-fat diet, and also genetic factors, while less consideration is often given to factors of occupational origin.

Hashimoto’s thyroid

When the immune system launches an attack on the thyroid gland, the small gland located under the Adam's apple, which produces hormones that regulate so many functions of the human body.

Heart failure: disorders of the heart

Heart failure refers to a dysfunction as a result of which the heart can no longer meet the needs of the body, causing reduced blood flow and accumulation (congestion) of

Mitral valve regurgitation

It is a condition in which the mitral valve leaflets do not close tightly, causing blood to leak backward into the left atrium of the heart.

ERECTILE DYSFUNCTION, WHAT TO KNOW AND WHAT TO DO

The mechanism that determines erection in the male arises from sexual arousal, which in turn is the result of the participation of emotions, the brain, hormonal flows, heart and vessels, muscles and nerves. Sometimes even one of these factors can cause erectile dysfunction, which can worsen when a state of emotional malaise and stress or even a persistent state of anxiety is added to it.

Why do I get cramps when I run?

A muscle cramp can come suddenly , such as during a run , and it does not announce itself with any kind of sign. At most you may realize it is coming very late , when already the muscle is contracting or overlapping.

Echocardiogram

The echocardiogram, also known as echocardiography, is a diagnostic imaging technique based on the use of ultrasound, which is quick and easy to perform, harmless, painless, and low-cost, and because of these favorable features has become very popular in the last 20 years in cardiology to study the heart, the blood vessels surrounding it, and the heart valves.

CT Computed Axial Tomography

tac

Computed tomography, abbreviated as CT, still often commonly referred to as CAT (computerized axial tomography) despite the evolution of the method, is an imaging investigation that provides very detailed three-dimensional structural information of the internal organs of the human body, making use of ionizing radiation (X-rays).

Description

To perform the CT scan, it is, first of all, necessary to remove all metal or other objects (earrings, rings, bracelets, chains, glasses, etc.), undress and put on the gown provided by the health care personnel.

Then, one should lie down on the couch of the CT apparatus and get into the position indicated by the doctors, which should be held stably throughout the evaluation, following precisely the doctors’ requests regarding breathing. When the correct position has been assumed, the crib begins to slide, going through a structure similar to a large doughnut with a hole in it, stopping in places at the areas to be analyzed.

At this stage, the CT scan circle administers ionizing radiation while special sensors acquire signals from the body tissues examined; in doing so, the circle rotates on itself to acquire information in all directions in space.

The collected signals are transduced into electrical pulses and sent to a computer that integrates and processes them, turning them into three-dimensional images, displayed on the monitor, which can be further processed to optimize their resolution and photographed to fix the most interesting aspects for clinical purposes.

The duration of the CT scan varies according to the extent and complexity of the area of the body to be examined (encephalon, chest, abdomen, limbs, etc.), as well as the type of instrument used (newer or older) and the patient’s ability to maintain the required position. On average, the total duration of the evaluation is about 30 minutes. The examination is completely painless.

In some cases, to improve the diagnostic ability of the CT scan, a contrast agent is to be used, which, depending on the case and the purpose of the investigation, will have to be taken by mouth (liquid) or injected into a vein or inserted into the rectum, a few minutes before lying down on the instrument bed.

When needed

Now widely used in clinical practice, CT scanning is considered a Level 2 evaluation, to be used when other simpler, cheaper, and harmless techniques do not allow to specify the diagnosis with a sufficient degree of accuracy and in planning interventional procedures.

One of the main reasons for limiting the use of CT scans relates to the fact that the proportion of ionizing radiation administered during the examination, while not harmful when considering a single evaluation, is not negligible (amounting to about 30 times that used in performing X-rays), and the accumulation of the effects of X-rays administered in numerous subsequent CT scans, even years apart, could damage the body’s tissues and promote the development of fibrosis or tumors.

The main indications for performing CT include:

  • Diagnosis of muscle and bone diseases, such as sarcomas, bone tumors, and complex fractures;
  • Clarification of the location (and relationship to neighboring tissues/organs) of a tumor, site of infection, or blood clot (thrombus);
  • Planning for an invasive procedure such as a delicate surgery or biopsy;
  • Accurate identification of the area where a tumor is present to be treated with radiation therapy;
  • Detection and monitoring of tumors, heart disease (coronary angiography with CT), lung nodules, and liver masses;
  • Evaluation of the effectiveness of specific therapies, particularly cancer therapies;
  • Accurate detection and localization of injuries and bleeding to internal organs.

Special Warnings

By itself, CT scan has no particular contraindications. However, in view of the use of ionizing radiation, it is important for women of childbearing age to be certain that they are not pregnant at the time the examination is performed. Conversely, although the radiation dose used is not likely to harm the fetus, if possible, it is preferable to postpone the evaluation or opt for an alternative diagnostic method (ultrasound or MRI).

The contrast medium used for CT scanning is generally harmless, but some people may develop hypersensitivity reactions (with onset of itching and skin rash) or true allergies: if you have had such experiences in previous examinations with contrast medium (even other than CT) or you are intolerant or allergic to particular drugs, it is important to inform your health care provider already while scheduling your CT appointment.

SPECIALISTI IN EVIDENZA

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PATOLOGIE CORRELATE

Cellulite

Cellulite is an inflammatory-based alteration of the fat-rich subcutaneous tissue(panniculus adiposus), triggered by fluid stagnation due to poor venous and lymphatic circulation (lymph is a fluid that flows in channels

Atrial fibrillation

Atrial fibrillation is the most common heart rhythm disorder in the Western world. In the United States it affects about three million people; in Italy, an estimated 600-700 thousand people

Ventricular hypertrophy

Ventricular hypertrophy is a condition characterized by thickening and a loss of elasticity of the walls of the left ventricle (i.e., the left lower chamber of the heart), which thus

Cardiac arrest

Cardiac arrest corresponds to the interruption of the heart’s contraction and pumping action, resulting from a sudden and drastic alteration in its electrical activity (ventricular fibrillation). Cardiac arrest is an

Deep vein thrombosis (DVT)

Deep vein thrombosis (DVT) occurs when a clot (thrombus) forms within a vein and completely or partially occludes it, blocking or restricting blood flow in that vessel. In principle, any

Obstructive sleep apnea

Repetitive episodes of upper airway obstruction may occur during sleep, often accompanied by reduced oxygen saturation. Such episodes are accompanied in almost all cases by snoring. Apneas often end with

Intracranial hypertension

Increased pressure within the head box may be related to cerebral edema or the presence of an intracranial expansive lesion, an obstruction of CSF circulation, or the association of these

Aortic aneurysm

An aortic aneurysm refers to permanent dilatation of a well-defined segment of the aorta, the largest artery in the body that receives blood directly from the left ventricle and distributes

Aortic valvulopathy

When the aortic valve does not properly perform its function of pumping blood into the heart, an aortic disease condition occurs that also involves the left ventricle. Aortic valve disease

Ablation of atrial fibrillation

Atrial fibrillation (AF) ablation surgery is a surgical procedure aimed at eliminating the source of the cardiac arrhythmia through the selective destruction of small portions of the cardiac tissue present
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