Planification de radiothérapie assistée par ordinateur : Questions médicales fréquentes
Nom anglais: Radiotherapy Planning, Computer-Assisted
Descriptor UI:D011880
Tree Number:L01.313.500.750.100.710.600.608
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"description": "Comment la radiothérapie est-elle diagnostiquée ?\nQuels examens précèdent la planification ?\nQuel rôle joue la biopsie dans la planification ?\nComment évaluer la taille de la tumeur ?\nQuelles informations sont nécessaires pour la planification ?",
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"headline": "Prévention sur Planification de radiothérapie assistée par ordinateur",
"description": "Peut-on prévenir le besoin de radiothérapie ?\nQuels facteurs de risque sont associés au cancer ?\nComment le dépistage précoce aide-t-il ?\nLes vaccinations peuvent-elles prévenir certains cancers ?\nQuel rôle joue l'alimentation dans la prévention ?",
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"headline": "Traitements sur Planification de radiothérapie assistée par ordinateur",
"description": "Comment la planification assistée par ordinateur fonctionne-t-elle ?\nQuels types de radiothérapie sont planifiés ?\nQuel est l'objectif principal de la radiothérapie ?\nCombien de séances de radiothérapie sont nécessaires ?\nLa radiothérapie peut-elle être combinée avec d'autres traitements ?",
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"description": "Quelles complications peuvent survenir après la radiothérapie ?\nComment gérer les effets secondaires ?\nLa radiothérapie augmente-t-elle le risque de cancer secondaire ?\nQuels sont les effets à long terme de la radiothérapie ?\nComment prévenir les complications post-radiothérapie ?",
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"name": "Facteurs de risque",
"headline": "Facteurs de risque sur Planification de radiothérapie assistée par ordinateur",
"description": "Quels sont les principaux facteurs de risque pour le cancer ?\nLe mode de vie influence-t-il le risque de cancer ?\nLes antécédents médicaux jouent-ils un rôle ?\nL'exposition professionnelle peut-elle être un facteur de risque ?\nLe stress a-t-il un impact sur le cancer ?",
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"@type": "Question",
"name": "Comment la radiothérapie est-elle diagnostiquée ?",
"position": 1,
"acceptedAnswer": {
"@type": "Answer",
"text": "La radiothérapie est planifiée après un diagnostic de cancer par imagerie médicale."
}
},
{
"@type": "Question",
"name": "Quels examens précèdent la planification ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des examens comme le scanner ou l'IRM sont réalisés pour évaluer la tumeur."
}
},
{
"@type": "Question",
"name": "Quel rôle joue la biopsie dans la planification ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "La biopsie permet de confirmer le type de cancer et d'orienter la planification."
}
},
{
"@type": "Question",
"name": "Comment évaluer la taille de la tumeur ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "La taille de la tumeur est mesurée par imagerie avant la planification de la radiothérapie."
}
},
{
"@type": "Question",
"name": "Quelles informations sont nécessaires pour la planification ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les informations sur la localisation, la taille et le type de cancer sont essentielles."
}
},
{
"@type": "Question",
"name": "Quels symptômes indiquent un besoin de radiothérapie ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes comme la douleur, la masse palpable ou des saignements peuvent indiquer un besoin."
}
},
{
"@type": "Question",
"name": "La radiothérapie soulage-t-elle les symptômes ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle peut réduire la douleur et d'autres symptômes liés aux tumeurs."
}
},
{
"@type": "Question",
"name": "Quels effets secondaires peuvent survenir ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les effets secondaires incluent fatigue, irritation cutanée et nausées."
}
},
{
"@type": "Question",
"name": "Comment les symptômes évoluent-ils après la radiothérapie ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes peuvent s'améliorer progressivement après le traitement."
}
},
{
"@type": "Question",
"name": "Les symptômes varient-ils selon le type de cancer ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les symptômes peuvent varier en fonction de la localisation et du type de cancer."
}
},
{
"@type": "Question",
"name": "Peut-on prévenir le besoin de radiothérapie ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "La prévention du cancer par un mode de vie sain peut réduire le besoin de radiothérapie."
}
},
{
"@type": "Question",
"name": "Quels facteurs de risque sont associés au cancer ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les facteurs incluent le tabagisme, l'alcool, l'obésité et l'exposition à des agents cancérigènes."
}
},
{
"@type": "Question",
"name": "Comment le dépistage précoce aide-t-il ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le dépistage précoce permet de détecter le cancer à un stade où la radiothérapie est plus efficace."
}
},
{
"@type": "Question",
"name": "Les vaccinations peuvent-elles prévenir certains cancers ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certaines vaccinations, comme celle contre le HPV, peuvent prévenir des cancers."
}
},
{
"@type": "Question",
"name": "Quel rôle joue l'alimentation dans la prévention ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une alimentation équilibrée peut réduire le risque de certains cancers et améliorer la santé globale."
}
},
{
"@type": "Question",
"name": "Comment la planification assistée par ordinateur fonctionne-t-elle ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Elle utilise des algorithmes pour déterminer la meilleure dose et la direction des rayons."
}
},
{
"@type": "Question",
"name": "Quels types de radiothérapie sont planifiés ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les types incluent la radiothérapie externe, interne et stéréotaxique."
}
},
{
"@type": "Question",
"name": "Quel est l'objectif principal de la radiothérapie ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'objectif est de détruire les cellules cancéreuses tout en préservant les tissus sains."
}
},
{
"@type": "Question",
"name": "Combien de séances de radiothérapie sont nécessaires ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le nombre de séances varie selon le type de cancer et la réponse au traitement."
}
},
{
"@type": "Question",
"name": "La radiothérapie peut-elle être combinée avec d'autres traitements ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle est souvent combinée avec la chimiothérapie ou la chirurgie."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir après la radiothérapie ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les complications incluent des lésions tissulaires, des infections et des effets secondaires prolongés."
}
},
{
"@type": "Question",
"name": "Comment gérer les effets secondaires ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des soins de soutien et des médicaments peuvent aider à gérer les effets secondaires."
}
},
{
"@type": "Question",
"name": "La radiothérapie augmente-t-elle le risque de cancer secondaire ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la radiothérapie peut augmenter le risque de développer un cancer secondaire à long terme."
}
},
{
"@type": "Question",
"name": "Quels sont les effets à long terme de la radiothérapie ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les effets à long terme peuvent inclure des problèmes de santé chroniques et des changements tissulaires."
}
},
{
"@type": "Question",
"name": "Comment prévenir les complications post-radiothérapie ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Un suivi médical régulier et des soins appropriés peuvent aider à prévenir les complications."
}
},
{
"@type": "Question",
"name": "Quels sont les principaux facteurs de risque pour le cancer ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les principaux facteurs incluent l'âge, les antécédents familiaux et l'exposition à des substances nocives."
}
},
{
"@type": "Question",
"name": "Le mode de vie influence-t-il le risque de cancer ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des habitudes comme le tabagisme et une mauvaise alimentation augmentent le risque."
}
},
{
"@type": "Question",
"name": "Les antécédents médicaux jouent-ils un rôle ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des antécédents de maladies comme le cancer augmentent le risque de récidive."
}
},
{
"@type": "Question",
"name": "L'exposition professionnelle peut-elle être un facteur de risque ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certaines professions exposent à des agents cancérigènes, augmentant le risque."
}
},
{
"@type": "Question",
"name": "Le stress a-t-il un impact sur le cancer ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le stress chronique peut affaiblir le système immunitaire, augmentant le risque de cancer."
}
}
]
}
]
}
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Overall, the TPS underestimated the nontarget dose by an average of -17.7% ± 25.3% for IMRT. Quantitatively similar results were obtained for VMAT (-17.6% ± 21.2%). POIs receiving < 5% of the prescrip...
Based on the currently available benchmarks our TPS is considered acceptable for clinical use, although the dose in some POIs was poorly predicted by the CC algorithm. Some areas were pointed out wher...
This study aimed to assess the accuracy and dosimetric impact of the Acuros XB (AXB) algorithm compared to the Anisotropic Analytical Algorithm (AAA) in two situations. First, simple phantom geometrie...
First, a phantom study was performed to compare the algorithms with radiochromic EBT3 film doses using one PMMA slab phantom and two others containing foam or air gap. Subsequently, a clinical study w...
Phantom dose calculations showed a better agreement of AXB with the film measurements. In the clinical study, AXB plans exhibited lower Conformity Index and PTV V...
AXB demonstrated higher accuracy than AAA in dose calculations of both phantom and clinical conditions, specifically in interface regions, making it suitable for sites with large heterogeneities. Henc...
To evaluate the advantage of the manual adaptive plans comparing to the scheduled plans, and explored clinical factors predicting patients suitable for adaptive strategy....
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The CI and HI of the manual adaptive plans were significantly superior to the scheduled ones (P = 0.0002, 0.003, respectively), demonstrating a better dose coverage of the target volume. Compared to t...
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Thoracic bulky esophageal cancer shrinks during radiotherapy, changing the location and shape of the surrounding heart and lungs. The current study aimed to explore how replanning by volumetric-modula...
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The Ethos H&N planning approach generated Ethos-initial SEQ plans with clinically comparable PTV coverage (average PTV...
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The synthetic CT (sCT) generation from the CBCT was proposed using a transformer-based network with a hybrid loss function. The network was trained and validated using the data from 176 patients to pr...
The general model decreased the mean absolute error (MAE) from 135 HU to 59 HU as compared to the CBCT. The hybrid loss function demonstrated superior performance in CT number correction and noise/art...
We established a deep learning framework based on transformer for clinical needs. The deep learning model demonstrated potential for continuous improvement with the help of a suggested personalized tr...
Dose - volume histograms have been historically used to study the relationship between the planned radiation dose and healthy tissue damage. However, this approach considers neither spatial informatio...
To evaluate dosimetry between CT based radiation planning and PET-CT based radiation planning....
Histologically proven 40 cases of locally advanced non-small cell carcinoma of lung were accrued for the prospective study. Contrast enhanced planning CT images and PET images were acquired. Target vo...
The mean of GTV were 141.18 ± 119.76 cc in CT and 115.54 ± 91.02 cc in PET-CT based and the difference was statistically significant (p=0.03). The mean of CTV were 313.91 ± 180.87 cc in CT and 260.81 ...
GTV measured using PET-CT, may be greater or lesser than the CECT-based GTV. PET-CT-based contouring is more accurate for identifying tumour margins and new lymph node volumes....
This study presents two cases of tumors in contact with the inferior vena cava during radiotherapy, and introduces a clinically useful technique for identifying tumor boundaries adjacent to blood vess...
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