Comparison Between CBCT and Fusion PET/CT-CBCT Guidance for Lung Biopsies

Fontana, Federico; Piacentino, Filippo; Ierardi, Anna Maria; Carrafiello, Gianpaolo; Coppola, Andrea; Muollo, Alessandra; Beneventi, Alessandro; Floridi, Chiara; Imperatori, Andrea; Carcano, Giulio; Venturini, Massimo

doi:10.1007/s00270-020-02613-3

Cited by 14 publications

(18 citation statements)

References 18 publications

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“…FI technique is recently being applied to lung procedures since software algorithms were developed to register the intraprocedural anatomic imaging with preprocedural PET/CT data. Some studies reported the experience of fusion PET/CT-CBCT studying it in guiding percutaneous biopsy of lung lesions compared with CBCT guidance [ 40 , 41 , 42 ]. PET/CT-CBCT-guided is feasible and safe as CBCT-guided biopsy with a lower number of non-diagnostic samples and false-negative cases, with evidence of metabolic information provided by a prior PET/CT and a better quality of the samples obtained with FI guidance [ 40 ].…”

Section: Clinical Applicationsmentioning

confidence: 99%

Role of Fusion Imaging in Image-Guided Thermal Ablations

et al. 2021

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Thermal ablation (TA) procedures are effective treatments for several kinds of cancers. In the recent years, several medical imaging advancements have improved the use of image-guided TA. Imaging technique plays a pivotal role in improving the ablation success, maximizing pre-procedure planning efficacy, intraprocedural targeting, post-procedure monitoring and assessing the achieved result. Fusion imaging (FI) techniques allow for information integration of different imaging modalities, improving all the ablation procedure steps. FI concedes exploitation of all imaging modalities’ strengths concurrently, eliminating or minimizing every single modality’s weaknesses. Our work aims to give an overview of FI, explain and analyze FI technical aspects and its clinical applications in ablation therapy and interventional oncology.

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Section: Clinical Applicationsmentioning

confidence: 99%

Role of Fusion Imaging in Image-Guided Thermal Ablations

et al. 2021

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“…Percutaneous lung needle biopsy can be guided by different imaging techniques, such as CT [ 2 ], fluoroscopy CT [ 12 ], cone beam CT [ 13 ], positron emission tomography (PET)-CT [ 14 ], or ultrasound in case of superficially located lesions [ 15 ]. The choice of the imaging technique depends on its availability, lesion type and location, patient’s collaboration, and operator’s preferences [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, sophisticated software allowing fusion imaging with different methods (CT, magnetic resonance and PET-CT) have improved diagnostic accuracy [ 8 , 13 ]. The capability to fuse morphological information obtained with classical radiological methods and metabolic activity provided by nuclear medicine techniques such as PET seems to be advantageous.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the fusion between fluoro-CT (or cone beam CT) and PET-CT images has proven to be very useful in guiding biopsy procedures, increasing their diagnostic accuracy. Indeed, the intensity of accumulation of the tracer correlates with biological activity, facilitating the identification of the most active tumour regions [ 8 , 13 ]. PET is an effective, reliable, and highly diagnostic method, but it is still quite expensive and not a widely available imaging method.…”

Section: Introductionmentioning

confidence: 99%

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Dual-layer spectral CT fusion imaging for lung biopsies: more accurate targets, diagnostic samplings, and biomarker information?

et al. 2022

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The increasingly widespread use of computed tomography (CT) has increased the number of detected lung lesions, which are then subjected to needle biopsy to obtain histopathological diagnosis. Obtaining high-quality biopsy specimens is fundamental for diagnosis and biomolecular characterisation that guide therapy decision-making. In order to obtain samples with high diagnostic potential, fusion imaging techniques, such as fusion between positron emission tomography and CT, have been introduced to target the biopsy where there more viable neoplastic cells can be sampled. Nowadays, dual-layer spectral CT represents a novel technology enabling an increased tissue characterisation. In particular, Z-effective images, i.e., colour-coded images based on the effective atomic number of tissue components, provide a higher level of discrimination than usual imaged based on x-ray attenuation in Hounsfield units and offer the potential of a better tissue characterisation. Our hypothesis is based on the future use of data provided by spectral CT, in particular by Z-effective images, as a guide for appropriate biopsy sampling for histopathological and biomolecular characterisation in the era of patient tailored-therapy.

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“…In this paper, the data given for registration are two sequences of images from CT and CBCT scanning, but both are only projected in the spine section direction. An additional condition is that interlamellar spacing of adjacent image slices is constant in the same image sequence, but for most situations the interlamellar spacing is unknown [10][11][12][13]. In this context, the algorithm is required to find the best matching of two sequences, including the corresponding image slices between two sequences, and the alignment of two corresponding images.…”

Section: Introductionmentioning

confidence: 99%

A Fast Image Guide Registration Supported by Single Direction Projected CBCT

Gong

Xie

et al. 2022

Electronics

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Image registration is an important research topic in medical image-guided therapy, which is dedicated to registering the high-dose imaging sequences with low-dose/faster means. Registering computer tomography (CT) scanning sequences with cone beam computer tomography (CBCT) scanning sequences is a typical application and has been widely used in CBCT-guided radiotherapy. The main problem is the difference in image clarity of these two image sequences. To solve this problem, for the single projection image sequence matching tasks encountered in medical practice, a novel local quality based curved section encoding strategy is proposed in this paper, which is called the high-quality curved section (HQCS). As an optimized cross-section regularly encoded along the sequence of image, this curved section could be used in order to solve the matching problem. Referencing the independent ground truth provided by medical image physicians, with an experiment combined with the four most widely used indicators used on image registration, matching performance of HQCS on CT/CBCT datasets was tested with varying clarity. Experimental results show that the proposed HQCS can register the CT/CBCT effectively and outperforms the commonly used methods. Specifically, the proposed HQCS has low time complexity and higher scalability, which indicates that the application enhanced the task of diagnosis.

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Comparison Between CBCT and Fusion PET/CT-CBCT Guidance for Lung Biopsies

Cited by 14 publications

References 18 publications

Role of Fusion Imaging in Image-Guided Thermal Ablations

Role of Fusion Imaging in Image-Guided Thermal Ablations

Dual-layer spectral CT fusion imaging for lung biopsies: more accurate targets, diagnostic samplings, and biomarker information?

A Fast Image Guide Registration Supported by Single Direction Projected CBCT

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