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5
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5
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5
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5
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5
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5
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"headline": "Questions et réponses médicales fréquentes sur Tomographie",
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"datePublished": "2026-05-10",
"inLanguage": "fr",
"hasPart": [
{
"@type": "MedicalWebPage",
"name": "Diagnostic",
"headline": "Diagnostic sur Tomographie",
"description": "Qu'est-ce que la tomographie par ordinateur ?\nQuand utiliser la tomographie pour un diagnostic ?\nLa tomographie est-elle invasive ?\nQuels types de tomographie existent ?\nLa tomographie peut-elle détecter des maladies cardiaques ?",
"url": "https://questionsmedicales.fr/mesh/D014054#section-diagnostic"
},
{
"@type": "MedicalWebPage",
"name": "Symptômes",
"headline": "Symptômes sur Tomographie",
"description": "Quels symptômes peuvent nécessiter une tomographie ?\nLa tomographie peut-elle aider à diagnostiquer des tumeurs ?\nQuels signes indiquent une nécessité de tomographie cérébrale ?\nLa tomographie peut-elle détecter des fractures ?\nQuels symptômes respiratoires justifient une tomographie thoracique ?",
"url": "https://questionsmedicales.fr/mesh/D014054#section-symptômes"
},
{
"@type": "MedicalWebPage",
"name": "Prévention",
"headline": "Prévention sur Tomographie",
"description": "La tomographie peut-elle être utilisée en dépistage préventif ?\nQuels facteurs influencent le besoin de tomographie préventive ?\nLa tomographie est-elle recommandée pour les fumeurs ?\nComment la tomographie aide-t-elle à la prévention des maladies ?\nLa tomographie est-elle utilisée pour le dépistage du cancer colorectal ?",
"url": "https://questionsmedicales.fr/mesh/D014054#section-prévention"
},
{
"@type": "MedicalWebPage",
"name": "Traitements",
"headline": "Traitements sur Tomographie",
"description": "La tomographie est-elle utilisée pour guider des traitements ?\nQuels traitements peuvent être planifiés grâce à la tomographie ?\nLa tomographie peut-elle évaluer l'efficacité d'un traitement ?\nQuels types de tomographie sont utilisés en oncologie ?\nLa tomographie peut-elle aider à surveiller des maladies chroniques ?",
"url": "https://questionsmedicales.fr/mesh/D014054#section-traitements"
},
{
"@type": "MedicalWebPage",
"name": "Complications",
"headline": "Complications sur Tomographie",
"description": "Quelles sont les complications possibles de la tomographie ?\nLa tomographie peut-elle causer des effets secondaires ?\nQuels risques sont associés à la tomographie répétée ?\nLa tomographie peut-elle entraîner des complications chez les enfants ?\nComment minimiser les risques liés à la tomographie ?",
"url": "https://questionsmedicales.fr/mesh/D014054#section-complications"
},
{
"@type": "MedicalWebPage",
"name": "Facteurs de risque",
"headline": "Facteurs de risque sur Tomographie",
"description": "Quels facteurs augmentent le besoin de tomographie ?\nLe tabagisme est-il un facteur de risque pour la tomographie ?\nLes antécédents familiaux influencent-ils le besoin de tomographie ?\nL'exposition professionnelle à des substances toxiques est-elle un facteur de risque ?\nL'obésité est-elle un facteur de risque pour des examens de tomographie ?",
"url": "https://questionsmedicales.fr/mesh/D014054#section-facteurs de risque"
}
]
},
{
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "Qu'est-ce que la tomographie par ordinateur ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "C'est une technique d'imagerie qui utilise des rayons X pour créer des images en coupe."
}
},
{
"@type": "Question",
"name": "Quand utiliser la tomographie pour un diagnostic ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle est utilisée pour évaluer des anomalies internes, comme des tumeurs ou des fractures."
}
},
{
"@type": "Question",
"name": "La tomographie est-elle invasive ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Non, la tomographie est une méthode non invasive qui ne nécessite pas d'intervention chirurgicale."
}
},
{
"@type": "Question",
"name": "Quels types de tomographie existent ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les principaux types sont la tomographie par ordinateur (CT) et la tomographie par émission de positons (PET)."
}
},
{
"@type": "Question",
"name": "La tomographie peut-elle détecter des maladies cardiaques ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la tomographie cardiaque permet d'évaluer la circulation sanguine et les anomalies cardiaques."
}
},
{
"@type": "Question",
"name": "Quels symptômes peuvent nécessiter une tomographie ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des douleurs abdominales, des maux de tête persistants ou des traumatismes peuvent justifier une tomographie."
}
},
{
"@type": "Question",
"name": "La tomographie peut-elle aider à diagnostiquer des tumeurs ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle permet de localiser et de caractériser les tumeurs dans divers organes."
}
},
{
"@type": "Question",
"name": "Quels signes indiquent une nécessité de tomographie cérébrale ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des symptômes comme des vertiges, des troubles de la vision ou des convulsions peuvent nécessiter une tomographie cérébrale."
}
},
{
"@type": "Question",
"name": "La tomographie peut-elle détecter des fractures ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle est efficace pour visualiser les fractures complexes, notamment celles du crâne ou de la colonne vertébrale."
}
},
{
"@type": "Question",
"name": "Quels symptômes respiratoires justifient une tomographie thoracique ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une toux persistante, des douleurs thoraciques ou des difficultés respiratoires peuvent nécessiter une tomographie thoracique."
}
},
{
"@type": "Question",
"name": "La tomographie peut-elle être utilisée en dépistage préventif ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle est parfois utilisée pour le dépistage préventif de certains cancers, comme le cancer du poumon."
}
},
{
"@type": "Question",
"name": "Quels facteurs influencent le besoin de tomographie préventive ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'âge, les antécédents familiaux et les facteurs de risque environnementaux peuvent influencer ce besoin."
}
},
{
"@type": "Question",
"name": "La tomographie est-elle recommandée pour les fumeurs ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les fumeurs peuvent bénéficier d'une tomographie pour dépister précocement des maladies pulmonaires."
}
},
{
"@type": "Question",
"name": "Comment la tomographie aide-t-elle à la prévention des maladies ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle permet de détecter des anomalies précoces, facilitant une intervention rapide et préventive."
}
},
{
"@type": "Question",
"name": "La tomographie est-elle utilisée pour le dépistage du cancer colorectal ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la tomographie peut être utilisée pour détecter des polypes ou des tumeurs dans le côlon."
}
},
{
"@type": "Question",
"name": "La tomographie est-elle utilisée pour guider des traitements ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle peut guider des procédures comme les biopsies ou les traitements ciblés."
}
},
{
"@type": "Question",
"name": "Quels traitements peuvent être planifiés grâce à la tomographie ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "La tomographie aide à planifier des interventions chirurgicales ou des radiothérapies."
}
},
{
"@type": "Question",
"name": "La tomographie peut-elle évaluer l'efficacité d'un traitement ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle permet de suivre l'évolution des maladies et l'efficacité des traitements administrés."
}
},
{
"@type": "Question",
"name": "Quels types de tomographie sont utilisés en oncologie ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "La tomographie par émission de positons (PET) et la tomographie par ordinateur (CT) sont couramment utilisées."
}
},
{
"@type": "Question",
"name": "La tomographie peut-elle aider à surveiller des maladies chroniques ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle est utile pour surveiller des maladies comme le cancer ou les maladies pulmonaires chroniques."
}
},
{
"@type": "Question",
"name": "Quelles sont les complications possibles de la tomographie ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications incluent l'exposition aux radiations et des réactions allergiques aux agents de contraste."
}
},
{
"@type": "Question",
"name": "La tomographie peut-elle causer des effets secondaires ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des effets secondaires comme des nausées peuvent survenir après l'utilisation d'agents de contraste."
}
},
{
"@type": "Question",
"name": "Quels risques sont associés à la tomographie répétée ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une exposition répétée aux radiations peut augmenter le risque de cancer à long terme."
}
},
{
"@type": "Question",
"name": "La tomographie peut-elle entraîner des complications chez les enfants ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les enfants sont plus sensibles aux radiations, nécessitant une évaluation prudente."
}
},
{
"@type": "Question",
"name": "Comment minimiser les risques liés à la tomographie ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Utiliser des techniques d'imagerie alternatives et limiter le nombre d'examens peut réduire les risques."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le besoin de tomographie ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les antécédents médicaux, les symptômes persistants et l'âge avancé sont des facteurs de risque."
}
},
{
"@type": "Question",
"name": "Le tabagisme est-il un facteur de risque pour la tomographie ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le tabagisme augmente le risque de maladies pulmonaires, justifiant une tomographie."
}
},
{
"@type": "Question",
"name": "Les antécédents familiaux influencent-ils le besoin de tomographie ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des antécédents familiaux de cancer ou de maladies cardiaques peuvent justifier une tomographie préventive."
}
},
{
"@type": "Question",
"name": "L'exposition professionnelle à des substances toxiques est-elle un facteur de risque ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, cela peut augmenter le risque de maladies nécessitant une évaluation par tomographie."
}
},
{
"@type": "Question",
"name": "L'obésité est-elle un facteur de risque pour des examens de tomographie ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'obésité peut augmenter le risque de maladies nécessitant une imagerie par tomographie."
}
}
]
}
]
}
Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 16/04/2026
Contenu vérifié selon les dernières recommandations médicales
4 publications dans cette catégorie
Affiliations :
Department of Diagnostic Radiology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan. Electronic address: inoueys34@gmail.com.
Publications dans "Tomographie" :
3 publications dans cette catégorie
Affiliations :
Department of Nuclear Medicine, AIIMS, New Delhi 110029, India. Electronic address: drcsbal@gmail.com.
Publications dans "Tomographie" :
3 publications dans cette catégorie
Affiliations :
Department of Radiology, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan.
Publications dans "Tomographie" :
2 publications dans cette catégorie
Affiliations :
Department of Radiology, Kitasato University Hospital, Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan.
Publications dans "Tomographie" :
2 publications dans cette catégorie
Affiliations :
Division of Nuclear Medicine and Molecular Imaging, The Russell H. Morgan Department of Radiology and Radiological Science at Johns Hopkins Hospital, 601 North Caroline St., JHOC 3, Baltimore, MD 21287, USA.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Radiation Oncology, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Hepatobiliary & Pancreatovascular Surgery, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Hepatobiliary & Pancreatovascular Surgery, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Hepatobiliary & Pancreatovascular Surgery, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Radiology, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Radiation Oncology, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear Medicine, Jieyang Affiliated Hospital, Sun Yat-Sen University, Jieyang, China. jyhuangweipeng@vip.sina.com.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China. 13178352662@163.com.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear Medicine & Minnan PET Center, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen, China. leochen0821@foxmail.com.
Publications dans "Tomographie" :
1 publication dans cette catégorie
Affiliations :
Department of Nuclear & Experimental Medical Sciences, Institute of Post Graduate Medical Education and Research/SSKM Hospital, Kolkata, West Bengal, India.
Publications dans "Tomographie" :
In an era of rapid technological progress, this Special Issue aims to provide a comprehensive overview of the state-of-the-art in tomographic imaging [...]....
In the acute distress respiratory syndrome (ARDS), specific lung regions can be exposed to excessive strain due to heterogeneous disease, gravity-dependent lung collapse and injurious mechanical venti...
Fourteen ARDS patients underwent CT and EIT acquisitions (at end-inspiratory and end-expiratory) at two levels of PEEP: a low-PEEP based on ARDS-net strategy and a high-PEEP titrated according to EIT....
The DRRS assessed by (ΔZ...
Changes in DRRS during a PEEP trial in ARDS patients could be monitored using EIT, based on changes in ΔZ...
The dynamic regional accuracy of electrical impedance tomography has not yet been validated. We aimed to compare the regional accuracy of electrical impedance tomography with that of four-dimensional ...
This single-center, prospective, observational study conducted in a general intensive care unit included adult patients receiving mechanical ventilation from July 2021 to February 2024. The patients w...
Overall, 45 patients were analyzed. The correlation coefficients in regional dynamic ventilation between four-dimensional computed tomography and electrical impedance tomography in each region were 0....
Regional ventilation using electrical impedance tomography during dynamic ventilation was highly accurate and consistent with the time phase compared to four-dimensional computed tomography. Given the...
Neural networks (NNs) have been widely applied in tomographic imaging through data-driven training and image processing. One of the main challenges in using NNs in real medical imaging is the requirem...
Magneto-acousto-electrical tomography (MAET), which couples ultrasound imaging with electrical impedance tomography, is an electrical property imaging method which is expected to have a wide range of ...
Magnetic Induction Tomography (MIT) is a non-invasive imaging technique used for dynamic monitoring and early screening of cerebral hemorrhage. Currently, there is a significant challenge in cerebral ...
Acoustoelectric tomography (AET) is a hybrid imaging technique combining ultrasound and electrical impedance tomography (EIT). It exploits the acoustoelectric effect (AAE): an US wave propagating thro...
This article investigates the detectability of contrasts in AET. We characterize the AEE signal as a function of the medium conductivity and electrode placement, using a novel 3D analytical model of t...
In a cylindrical geometry with an inclusion contrast of 5 times the background and two pairs of electrodes, the maximum, minimum, and mean suppression of the AEE signal are 68.5%, 3.12%, and 49.0%, re...
We show that the coupling of AAE and EIT leads to a suppressed signal and the magnitude of the reduction is a function of geometry of the medium, contrast and electrode locations....
This model can aid in the reconstruction of AET images involving a minimum number of electrodes to determine the optimal electrode placement....
We sought to determine whether thoracic electrical impedance tomography (EIT) could characterize pulmonary function in amyotrophic lateral sclerosis (ALS) patients, including those with facial weaknes...
We enrolled 32 ALS patients and 32 age- and sex-matched healthy controls (HCs) without underlying lung disease. All participants had EIT measurements performed simultaneously with standard pulmonary f...
Data from 30 ALS patients and 27 HCs were analyzed. Immediate upright SVC reproducibility was very high (ICC 0.98). Correlations were generally strongest between EIT and spirometry measures, with...
EIT-based pulmonary measures hold the promise of providing an alternative approach for lung function assessment in ALS patients. Based on these early results, further development and study of this tec...
Electrical Impedance Tomography (EIT) is a groundbreaking, non-invasive, and radiation-free imaging technique for continuous, real-time ventilation monitoring. It also has an application in pulmonary ...
Fournier's gangrene (FG), a rapidly progressive necrotizing soft tissue infection of the external genitalia and perineum, necessitates urgent surgical debridement. The time to surgery effect of preope...
This was a single-center retrospective study of patients who underwent CT prior to surgical debridement of FG during a 9-year period vs patients who did not undergo CT. In 76 patients (male = 39, mean...
The time from hospital presentation to surgical intervention was not significantly different between patients who underwent CT and those who did not (6.65 ± 3.71 vs 5.73 ± 4.33 h, p = 0.37). There wer...
Obtaining a preoperative CT did not delay surgical intervention in patients with FG....