Tomographie par émission monophotonique couplée à la tomodensitométrie : Questions médicales fréquentes
Nom anglais: Single Photon Emission Computed Tomography Computed Tomography
Descriptor UI:D000072098
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"description": "Quels facteurs augmentent le besoin de SPECT-CT ?\nLe mode de vie influence-t-il le besoin de SPECT-CT ?\nL'âge est-il un facteur de risque ?\nLes antécédents familiaux jouent-ils un rôle ?\nLe stress peut-il influencer le besoin de SPECT-CT ?",
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"@type": "Question",
"name": "Quand utilise-t-on la SPECT-CT ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle est utilisée pour évaluer des maladies cardiaques, neurologiques et oncologiques."
}
},
{
"@type": "Question",
"name": "Quels types de maladies peut-on diagnostiquer ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "On peut diagnostiquer des cancers, des maladies cardiaques et des troubles neurologiques."
}
},
{
"@type": "Question",
"name": "La SPECT-CT est-elle invasive ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, c'est une méthode non invasive qui nécessite une injection de traceur radioactif."
}
},
{
"@type": "Question",
"name": "Quels sont les avantages de la SPECT-CT ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle offre des images fonctionnelles et anatomiques, améliorant le diagnostic."
}
},
{
"@type": "Question",
"name": "La SPECT-CT peut-elle remplacer d'autres examens ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle complète souvent d'autres examens comme l'IRM ou le scanner, mais ne les remplace pas."
}
},
{
"@type": "Question",
"name": "Quels symptômes justifient une SPECT-CT ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des douleurs thoraciques, des troubles neurologiques ou des symptômes de cancer."
}
},
{
"@type": "Question",
"name": "La SPECT-CT peut-elle détecter des métastases ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle est efficace pour localiser des métastases dans le corps."
}
},
{
"@type": "Question",
"name": "Quels signes neurologiques sont évalués ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des signes comme des troubles de la mémoire, des convulsions ou des maux de tête."
}
},
{
"@type": "Question",
"name": "Peut-on utiliser la SPECT-CT pour des douleurs osseuses ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle aide à évaluer les douleurs osseuses et les pathologies associées."
}
},
{
"@type": "Question",
"name": "Quels symptômes cardiaques sont concernés ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des symptômes comme l'angine de poitrine ou l'insuffisance cardiaque."
}
},
{
"@type": "Question",
"name": "La SPECT-CT peut-elle aider à la prévention des maladies ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Indirectement, en permettant un diagnostic précoce et un suivi des maladies."
}
},
{
"@type": "Question",
"name": "Quels facteurs de risque sont surveillés ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les antécédents familiaux, l'hypertension et le tabagisme sont surveillés."
}
},
{
"@type": "Question",
"name": "La SPECT-CT est-elle utilisée pour le dépistage ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle n'est pas un outil de dépistage de routine, mais peut être utilisée dans certains cas."
}
},
{
"@type": "Question",
"name": "Comment la SPECT-CT contribue-t-elle à la santé publique ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle aide à identifier les maladies à un stade précoce, améliorant les résultats de santé."
}
},
{
"@type": "Question",
"name": "Quels modes de vie peuvent réduire les risques ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une alimentation saine, l'exercice régulier et l'arrêt du tabac réduisent les risques."
}
},
{
"@type": "Question",
"name": "La SPECT-CT guide-t-elle les traitements ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle aide à planifier des traitements comme la radiothérapie ou la chirurgie."
}
},
{
"@type": "Question",
"name": "Peut-on évaluer l'efficacité d'un traitement ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la SPECT-CT permet de suivre la réponse au traitement au fil du temps."
}
},
{
"@type": "Question",
"name": "La SPECT-CT est-elle utilisée pour la recherche ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle est utilisée dans la recherche pour étudier diverses pathologies."
}
},
{
"@type": "Question",
"name": "Quels traitements peuvent être ajustés grâce à la SPECT-CT ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traitements oncologiques et cardiaques peuvent être ajustés selon les résultats."
}
},
{
"@type": "Question",
"name": "La SPECT-CT aide-t-elle à la prise de décision clinique ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle fournit des informations cruciales pour la prise de décision médicale."
}
},
{
"@type": "Question",
"name": "Y a-t-il des risques associés à la SPECT-CT ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les risques sont faibles, mais incluent une exposition aux radiations et des réactions allergiques."
}
},
{
"@type": "Question",
"name": "Quelles sont les complications possibles ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications peuvent inclure des effets secondaires liés au traceur radioactif."
}
},
{
"@type": "Question",
"name": "La SPECT-CT peut-elle causer des douleurs ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des douleurs légères peuvent survenir au site d'injection du traceur."
}
},
{
"@type": "Question",
"name": "Comment minimiser les risques ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "En suivant les recommandations médicales et en informant le médecin des allergies."
}
},
{
"@type": "Question",
"name": "Les femmes enceintes peuvent-elles passer une SPECT-CT ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Généralement, elle est évitée chez les femmes enceintes en raison des radiations."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le besoin de SPECT-CT ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les antécédents de maladies cardiaques, de cancer ou de troubles neurologiques."
}
},
{
"@type": "Question",
"name": "Le mode de vie influence-t-il le besoin de SPECT-CT ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des habitudes comme le tabagisme et une mauvaise alimentation augmentent les risques."
}
},
{
"@type": "Question",
"name": "L'âge est-il un facteur de risque ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le risque de maladies augmente avec l'âge, justifiant des examens comme la SPECT-CT."
}
},
{
"@type": "Question",
"name": "Les antécédents familiaux jouent-ils un rôle ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des antécédents familiaux de maladies augmentent le risque personnel."
}
},
{
"@type": "Question",
"name": "Le stress peut-il influencer le besoin de SPECT-CT ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le stress chronique peut contribuer à des problèmes cardiaques et neurologiques."
}
}
]
}
]
}
Introduction The aim of the current study was to determine the diagnostic accuracy of three commonly used localization modalities for parathyroid adenomas, i.e., single-photon emission computerised to...
Subtraction of single-photon emission computed tomography (SPECT) images has a number of clinical applications in e.g. foci localization in ictal/inter-ictal SPECT and defect detection in rest/stress ...
Digital simulations (XCAT) and phantom studies (NEMA-IQ and anthropomorphic torso) showed that all four methods were able to generate difference images but their performance on specific metrics varied...
All four investigated methods of SPECT subtraction demonstrated the capacity to generate a feasible difference image from two SPECT images. Image subtraction is recommended when the user is only inter...
The clinical presentation of coronary artery disease (CAD) has changed during the last 20 years with less ischemia on stress testing and more nonobstructive CAD on coronary angiography. Single-photon ...
To assess the value of posttherapy 99mTc-pentavalent dimercaptosuccinic acid (DMSA-V) brain SPECT/CT in patients with brain glioma....
Patients with pathologically or radiologically proven glioma were prospectively enrolled in this study. 99mTc-DMSA-V brain SPECT/CT images were acquired at 120-180 min after i.v. injection of 555-740 ...
Thirty-four patients (18 males and 16 females; mean age 37.7 ± 16 years) were enrolled in this study. Interreader agreement between the readers ranged from 0.71 to 0.82. Based on the composite referen...
Posttherapy brain SPECT/CT scanning with 99mTc-DMSA-V is a noninvasive, reliable, and specific tool for evaluation of patients with brain glioma after definitive therapy. Scan positivity was associate...
Accurate attenuation correction (AC) is vital in nuclear medicine, particularly for quantitative single-photon emission computed tomography/computed tomography (SPECT/CT) imaging. This study aimed to ...
A dataset of 1000 Tc-99m DTPA SPECT/CT scans was analyzed for training (n = 800), validation (n = 100), and testing (n = 100) using a modified 3D U-Net for deep learning. The study investigated the us...
The study successfully developed and optimized a deep learning algorithm for generating synthetic μ-maps in kidney SPECT images, demonstrating the potential to transition from conventional SPECT/CT to...
Prostate-specific membrane antigen (PSMA), a well-established biological marker for prostate cancer (PCa) imaging and therapy, is overexpressed on the surface of prostate cancer lesions. In this study...
Despite unquestionable progress in interventional and pharmacologic therapies of ischemic heart disease, the number of patients with chronic ischemic heart failure is increasing and the prognosis rema...
The present study aimed to evaluate the effectiveness of different filters in improving the quality of myocardial perfusion single-photon emission computed tomography (SPECT) images. Data were collect...
To assess whether arterial spin labeling perfusion images of healthy controls can enhance ictal single-photon emission computed tomography analysis and whether the acquisition of the interictal image ...
We developed 2 pipelines: The first uses ictal and interictal images and compares these to single-photon emission computed tomography and arterial spin labeling of healthy controls. The second pipelin...
Inclusion criteria were met by 43 individuals who underwent epilepsy surgery and by 73 non-surgical individuals with epilepsy. Compared to the gold standard analysis, both pipelines resulted in signif...
We propose a new ictal single-photon emission computed tomography protocol; it finds relevantly more ictal hyperperfusion, and halves the radiation dose in about half of the individuals. ANN NEUROL 20...
As patient exposure to ionizing radiation from medical imaging and its risks are continuing issues, this study aimed to evaluate DNA damage and repair markers after myocardial perfusion single-photon ...