La tomodensitométrie à comptage photonique suscite un enthousiasme bien mérité et cette technologie aura des répercussions cliniques importantes, a déclaré la professeure Martine Rémy-Jardin dans une interview exclusive accordée à AuntMinnieEurope.com lors des Journées Francophones de Radiologie (JFR 2022), la réunion annuelle de la Société française de radiologie (SFR).
"Ça va changer beaucoup de choses," a déclaré Rémy-Jardin dans une interview avec notre correspondante Mélisande Rouger. Cette nouvelle technologie "ouvre la possibilité d'avoir de nouveaux axes de développement. Nous en sommes à notre première appréciation de ce qui peut être fait. Nous sommes très enthousiastes."
De nombreux patients thoraciques sont susceptibles de bénéficier de la tomographie à comptage photonique, selon Rémy-Jardin, qui utilise cette technique dans son établissement de Lille depuis un peu plus d'un an. "Nous savons qu'à partir de l'analyse visuelle des images, il y a actuellement une limite dans la représentation des résultats, et avec cette technique, nous améliorons nos connaissances dans différents organes. Elle va changer considérablement la façon dont nous allons aborder ces troubles," a-t-elle déclaré.
En ce qui concerne l'imagerie de l'embolie pulmonaire, l'un de ses principaux domaines de spécialisation, il reste encore beaucoup de gens à convaincre de la valeur clinique de la perfusion pulmonaire par tomodensitométrie. "Elle est disponible mais probablement sous-utilisée à l'heure actuelle, car elle représente un complément très important à la morphologie. Cette analyse de la microcirculation pulmonaire est un grand domaine pour aujourd'hui," a-t-elle déclaré.
Rémy-Jardin a également souligné l'importance de la perfusion pulmonaire pour évaluer les effets à long terme du COVID-19, un sujet qu'elle a abordé lors d'une session des JFR le vendredi 7 octobre en fin d'après-midi.
La professeure Martine Rémy-Jardin nous fait part de ses réflexions sur le scanner à comptage photonique, l'embolie pulmonaire et la perfusion pulmonaire.
Note de rédacteur: Ceci est une traduction éditée d'un article publié en anglais en ligne par AuntMinnieEurope. Traduction par Frances Rylands-Monk.
![Examples of ultrasound findings and techniques. (A) Images in a 39-year-old male patient with a mass in the left thigh. The mass is heterogeneous on the B-mode US image (compared with the patient in D) and showed increased microvascularity (superb microvascular imaging [SMI]) and shear-wave elastography (SWE) values. Undifferentiated pleomorphic sarcoma was diagnosed at biopsy (with pleomorphic rhabdomyosarcoma in surgical specimen). (B) Images in an 18-year-old male patient with a mass in the left leg. The mass is hypoechoic on the B-mode image, with no other findings suggestive of malignancy. The lesion is in contact with the cortex of the tibia, which is slightly irregular. CT revealed a doubtful anteromedial tibial erosion. The microvascular study demonstrated high vascularization, suggestive of malignancy. Periosteal Ewing sarcoma was diagnosed with both histologic and immunohistochemical confirmation. (C) Images in a 69-year-old female patient with a lump growing on the outside of the left leg. Multiple SWE examinations were performed (please note the high values obtained in the measurements, whereas the color map highlights the stiffness relative to adjacent tissues). SMI showed areas of increased vascularization to target for sampling. Undifferentiated spindle cell sarcoma was diagnosed at biopsy, with residual leiomyosarcoma in the surgical specimen after neoadjuvant therapy. (D) Images in a 56-year-old female patient with a mass in the right thigh. The mass is heterogeneous at both B-mode ultrasound (similar to patient A) and MRI (coronal T2-weighted spectral attenuated inversion recovery [SPAIR]; T1-weighted pre-contrast and postcontrast imaging), which even shows uptake after the administration of paramagnetic contrast material, which is traditionally suggestive of malignancy. Low values at SMI and elastography are suggestive of benignity. Spindle cell lipoma was diagnosed at biopsy, with atypical spindle cell lipomatous tumor in the surgical specimen.](https://img.auntminnieeurope.com/mindful/smg/workspaces/default/uploads/2026/08/images-radiol250278fig2.APCFLSvX6p.jpg?auto=format%2Ccompress&fit=crop&h=100&q=70&w=100)
![Examples of ultrasound findings and techniques. (A) Images in a 39-year-old male patient with a mass in the left thigh. The mass is heterogeneous on the B-mode US image (compared with the patient in D) and showed increased microvascularity (superb microvascular imaging [SMI]) and shear-wave elastography (SWE) values. Undifferentiated pleomorphic sarcoma was diagnosed at biopsy (with pleomorphic rhabdomyosarcoma in surgical specimen). (B) Images in an 18-year-old male patient with a mass in the left leg. The mass is hypoechoic on the B-mode image, with no other findings suggestive of malignancy. The lesion is in contact with the cortex of the tibia, which is slightly irregular. CT revealed a doubtful anteromedial tibial erosion. The microvascular study demonstrated high vascularization, suggestive of malignancy. Periosteal Ewing sarcoma was diagnosed with both histologic and immunohistochemical confirmation. (C) Images in a 69-year-old female patient with a lump growing on the outside of the left leg. Multiple SWE examinations were performed (please note the high values obtained in the measurements, whereas the color map highlights the stiffness relative to adjacent tissues). SMI showed areas of increased vascularization to target for sampling. Undifferentiated spindle cell sarcoma was diagnosed at biopsy, with residual leiomyosarcoma in the surgical specimen after neoadjuvant therapy. (D) Images in a 56-year-old female patient with a mass in the right thigh. The mass is heterogeneous at both B-mode ultrasound (similar to patient A) and MRI (coronal T2-weighted spectral attenuated inversion recovery [SPAIR]; T1-weighted pre-contrast and postcontrast imaging), which even shows uptake after the administration of paramagnetic contrast material, which is traditionally suggestive of malignancy. Low values at SMI and elastography are suggestive of benignity. Spindle cell lipoma was diagnosed at biopsy, with atypical spindle cell lipomatous tumor in the surgical specimen.](https://img.auntminnieeurope.com/mindful/smg/workspaces/default/uploads/2026/08/images-radiol250278fig2.APCFLSvX6p.jpg?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
