Real-time control of respiratory motion: Beyond radiation therapy

Cavedon, Carlo

doi:10.1016/j.ejmp.2019.09.241

Cited by 13 publications

(7 citation statements)

References 185 publications

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“…Magnetic Resonance Imaging (MRI) quality is also impaired by respiratory artifacts [246]. As such, research in the area of respiratory artifact compensation is growing exponentially, and a variety of technological solutions are currently available for the improvement of imaging for medical diagnosis [247,248]. Likewise, the management of respiratory artifacts is essential for some therapeutic fields, and especially for radiotherapy [249].…”

Section: Current Evidencementioning

confidence: 99%

“…Given the abundance of methods for correcting motion in CT and PET images, the interested reader is referred to a previous review [245] for detailed information on this topic. With the technological advances of imaging in resolution and quality, an ever-increasing demand for respiratory artifact compensation solutions is expected in the next future [247].…”

Section: Measurement and Computingmentioning

confidence: 99%

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The Importance of Respiratory Rate Monitoring: From Healthcare to Sport and Exercise

Nicolò

Massaroni

Schena

et al. 2020

Sensors

262

137

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Respiratory rate is a fundamental vital sign that is sensitive to different pathological conditions (e.g., adverse cardiac events, pneumonia, and clinical deterioration) and stressors, including emotional stress, cognitive load, heat, cold, physical effort, and exercise-induced fatigue. The sensitivity of respiratory rate to these conditions is superior compared to that of most of the other vital signs, and the abundance of suitable technological solutions measuring respiratory rate has important implications for healthcare, occupational settings, and sport. However, respiratory rate is still too often not routinely monitored in these fields of use. This review presents a multidisciplinary approach to respiratory monitoring, with the aim to improve the development and efficacy of respiratory monitoring services. We have identified thirteen monitoring goals where the use of the respiratory rate is invaluable, and for each of them we have described suitable sensors and techniques to monitor respiratory rate in specific measurement scenarios. We have also provided a physiological rationale corroborating the importance of respiratory rate monitoring and an original multidisciplinary framework for the development of respiratory monitoring services. This review is expected to advance the field of respiratory monitoring and favor synergies between different disciplines to accomplish this goal.

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Section: Current Evidencementioning

confidence: 99%

Section: Measurement and Computingmentioning

confidence: 99%

The Importance of Respiratory Rate Monitoring: From Healthcare to Sport and Exercise

Nicolò

Massaroni

Schena

et al. 2020

Sensors

262

137

View full text Add to dashboard Cite

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“…The uniform constraint regardless of breast size might be too strict for patients with an unfavorable physique, but this concern requires further investigation and verification in a large patient cohort. Accurate determination, management and control of the magnitude of respiratory motion in radiation therapy is an important aspect of modern treatment planning and delivery, as described in AAPM Task Group 76 and C. Cavedon [17,34]. This study analyzed the respiratory motion of the breasts using tracking data obtained by an external infrared marker, which is an appropriate marker for approximating breast motion.…”

Section: Discussionmentioning

confidence: 99%

The influence of respiratory motion on dose distribution in accelerated partial breast irradiation using volumetric modulated arc therapy

et al. 2020

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Accelerated partial breast irradiation (APBI) is alternative treatment option for patients with early stage breast cancer. The interplay effect on volumetric modulated arc therapy APBI (VMAT-APBI) has not been clarified. This study aimed to evaluate the feasibility of VMAT-APBI for patients with small breasts and investigate the amplitude of respiratory motion during VMAT-APBI delivery that significantly affects dose distribution. Methods: The VMAT-APBI plans were generated with 28.5 Gy in five fractions. We performed patient-specific quality assurance using Delta 4 phantom under static conditions. We also measured point dose and dose distribution using the ionization chamber and radiochromic film under static and moving conditions of 2, 3 and 5 mm. We compared the measured and calculated point doses and dose distributions by dose difference and gamma passing rates. Results: A total of 20 plans were generated; the dose distributions were consistent with those of previous reports. For all measurements under static conditions, the measured and calculated point doses and dose distributions showed good agreement. The dose differences for chamber measurement were within 3%, regardless of moving conditions. The mean gamma passing rates with 3%/2 mm criteria in the film measurement under static conditions and with 2 mm, 3 mm, and 5 mm of amplitude were 95.0 ± 2.0%, 93.3 ± 3.3%, 92.1 ± 6.2% and 84.8 ± 7.8%, respectively. The difference between 5 mm amplitude and other conditions was statistically significant. Conclusions: Respiratory management should be considered for the risk of unintended dose distribution if the respiratory amplitude is >5 mm.

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“…4D medical imaging technology provides the availability of dynamic tracking for respiratory motion [13];nevertheless, it can be difficult to image the motion of interest directly during the imaging procedure. Surrogate or marker is always used and the regular variation of breathing pattern has to be assumed to simplify the imaging process [14].…”

Section: Take Down Policymentioning

confidence: 99%

Exploring Respiratory Motion Tracking Through Electrical Impedance Tomography

Wang

et al. 2021

IEEE Trans. Instrum. Meas.

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Motion tracking is an effective approach for the management of respiratory motion during the medical imaging process, which has always been a major concern in diagnostic imaging, interventional, and non-invasive therapy. However, the low imaging speed of traditional medical imaging techniques limits the practical application of real-time motion tracking. Electrical impedance tomography (EIT) is proved to be an effective tool for continuous monitoring of lung activity/status. However, the respiratory motion has never been studied in the medical EIT field before. In this paper, preliminary research of lung movement during the respiratory process is first studied based on EIT. Multi-ring electrode thorax models under different respiratory statuses were constructed to obtain simulation data of EIT. A modified TV algorithm is used for the estimation of lung volume and movement based on 3D EIT images, which improve the quality of reconstruction by approximately 30% and 20% compared with the traditional Tikhonov method and the total variation (TV) method, respectively. Both simulations and experiments were conducted to show the potential of respiratory motion tracking through 3D EIT reconstruction.

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Real-time control of respiratory motion: Beyond radiation therapy

Cited by 13 publications

References 185 publications

The Importance of Respiratory Rate Monitoring: From Healthcare to Sport and Exercise

The Importance of Respiratory Rate Monitoring: From Healthcare to Sport and Exercise

The influence of respiratory motion on dose distribution in accelerated partial breast irradiation using volumetric modulated arc therapy

Exploring Respiratory Motion Tracking Through Electrical Impedance Tomography

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