Bone single-photon emission computed tomography/computed tomography in cancer care in the past decade: a systematic review and meta-analysis as well as recommendations for further work

SPECT/CT, PET/CT, and PET/MRI for Response Assessment of Bone Metastases

Recent developments in hybrid SPECT/CT systems and the use of cadmium-zinc-telluride (CZT) detectors have improved the diagnostic accuracy of bone scintigraphy. These advancements have paved the way for novel quantitative approaches to accurate and reproducible treatment monitoring of bone metastases. PET/CT imaging using [18F]F-FDG and [18F]F-NaF have shown promising clinical utility in bone metastases assessment and monitoring response to therapy and prediction of treatment response in a broad range of malignancies. Additionally, specific tumor-targeting tracers like [99mTc]Tc-PSMA, [68Ga]Ga-PSMA, or [11C]C- or [18F]F-Choline revealed high diagnostic performance for early assessment and prognostication of bone metastases, particularly in prostate cancer. PET/MRI appears highly accurate imaging modality, but has associated limitations notably, limited availability, more complex logistics and high installation costs. Advances in artificial intelligence (Al) seem to improve the accuracy of imaging modalities and provide an assistant role in the evaluation of treatment response of bone metastases.

A Review on the Usage of Bone Single-Photon Emission Computed Tomography/Computed Tomography in Detecting Skeletal Metastases in the Post-COVID-19 Era: Is it Time to Ditch Planar and Single-Photon Emission Computed Tomography only Gamma Camera Systems?

Planar whole-body bone scanning (WBS) is widely used to evaluate skeletal lesions seen in cancer and noncancer cases. Frequently, degenerative, or other benign bony changes may give rise to indeterminate lesions that mimic bone metastases. In the post-COVID-19 era, there is an evolutionary phase that puts importance on global development and adaptability, which encompasses to include nuclear medicine practices worldwide. Single-photon emission computed tomography/computed tomography (SPECT/CT) can be used to improve the characterization of these lesions and help to resolve the diagnostic conundrum while reducing the need for patients to undergo multiple different examinations at various imaging departments. The fusion of SPECT and CT allows morphological characterization of functional abnormality detected by focal tracer uptake on planar scintigraphy, which provides a one-stop center imaging in nuclear medicine departments. The objective of this study was to review the diagnostic accuracy of SPECT/CT in diagnosing bone metastases in a variety of oncology and nononcology cases and to determine the feasibility of performing bone SPECT/CT in all suspected cancer cases, including cases of bone infection instead of planar imaging alone. The utilization of hybrid SPECT/CT in indeterminate bone lesions detected on planar WBS can significantly increase the diagnostic confidence and accuracy of image interpretation. Recognition of patterns of disease identified using hybrid imaging can improve the management of patients with potentially lower costs in the long term. Currently, hybrid SPECT/CT machines are becoming a norm in nuclear medicine departments, thus potentially making single planar application machines obsolete in the near future. We hypothesize that in the interest of providing a meaningful interpretation of isotope bone scans, the default protocol should involve the option of acquiring SPECT/CT images rather than relying on whole-body scans only. Departments choosing to upgrade existing equipment or those choosing to invest in only one gamma camera should proactively opt for hybrid SPECT/CT systems.

Effect of teach-back health education combined with structured psychological nursing on adverse emotion and patient cooperation during 99mTc-3PRGD2.SPECT/CT

BACKGROUND

^99mTc-3PRGD2.SPECT/CT is a commonly used examination method in nuclear medicine. However, patients receiving ^99mTc-3PRGD2.SPECT/CT have insufficient knowledge of this method and worry about the examination results.

AIM

To investigate the effect of teach-back health education combined with structured psychological nursing on adverse emotion and cooperation in patients undergoing ^99mTc-3PRGD2.SPECT/CT examination.

METHODS

Ninety patients undergoing ^99mTc-3PRGD2.SPECT/CT examinations were divided into a study group and a control group using a simple random number table, and 45 cases were allocated to each group. Routine nursing was provided to the control group, and teach-back health education combined with structured psychological nursing was provided to the study group on the basis of the control group. Heart rate, diastolic blood pressure, systolic blood pressure, self-rating depression scale (SDS), and self-rating anxiety scale (SAS) were assessed before and after the intervention, and examination cooperation and intervention satisfaction were assessed in the two groups before, during, and after the examination.

RESULTS

Before the examination, heart rate, diastolic blood pressure, and systolic blood pressure in the study group were not significantly different from the values of the control group (P > 0.05). The results of the study group before and after the examination were lower than those in the control group (P < 0.05). Before the intervention, SDS and SAS scores in the study group were not significantly different from those in the control group (P > 0.05). After the intervention, SDS and SAS scores in the study group were lower than those in the control group (P < 0.05). The degree of cooperation was higher in the study group than in the control group (P < 0.05). The satisfaction rate with the intervention was higher in the study group than in the control group (P < 0.05).

CONCLUSION

Teach-back health education combined with structured psychological nursing can help maintain the stability of blood pressure and heart rate, relieve negative emotions, and improve the satisfaction and cooperation of patients undergoing ^99mTc-3PRGD2.SPECT/CT examinations.