Role of SPECT/CT of Bone Scan in Charactarization of Bone Lesions

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

120 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-11-30

Study Completion Date

2026-12-31

Brief Summary

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This observational study aims to assess the diagnostic value of SPECT/CT of 99mTc-MDP bone scintigraphy in differentiating begnin from malignant bone lesions. The main question it aims to answer is:

●Can SPECT/CT-derived quantitative parameters (SUVmax, SUVmean) accurately differentiate between begnin and malignant bone lesions in clinical settings? Final diagnostic impression: confirmed by biopsy (if available), or through multidisciplinary radiologic-clinical correlation

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Detailed Description

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Bone lesions represent a common diagnostic challenge in oncology and general radiology, as they may be of malignant, benign, or degenerative origin. Accurate differentiation is essential for guiding appropriate management, avoiding unnecessary biopsies or surgeries, and improving patient outcomes.

Among imaging modalities, 99mTc-methylene diphosphonate (MDP) bone scintigraphy has long been a cornerstone in skeletal evaluation due to its high sensitivity in detecting bone turnover. However, hybrid SPECT/CT imaging, which combines functional and anatomical data, has revolutionized bone imaging by enhancing lesion localization, characterization, and diagnostic specificity.

Recent advances in quantitative SPECT/CT allow the extraction of semi-quantitative parameters, such as the Standardized Uptake Value (SUV), previously limited to PET imaging. These SUV-based parameters have shown promising diagnostic value in distinguishing benign from malignant skeletal lesions.

For instance, SUVmax thresholds derived from 99mTc-MDP SPECT/CT have been proposed in several studies, with malignant lesions often demonstrating higher uptake than benign ones due to increased osteoblastic activity.

In resource-limited settings such as Egypt, access to PET/CT remains constrained due to cost and availability, especially outside major urban centers. Consequently, leveraging the diagnostic utility of quantitative SPECT/CT could bridge the gap in skeletal lesion assessment and aid in earlier detection and treatment planning.

Therefore, this study aims to evaluate the diagnostic value of SPECT/CT-derived SUV in differentiating benign and malignant bone lesions at a tertiary center in Upper Egypt. It will analyze the correlation between SUV metrics, lesion morphology, and final diagnosis, contributing to the growing body of evidence supporting quantitative SPECT/CT in musculoskeletal oncology.

Conditions

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Bone Lesions

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Interventions

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SPECT/CT

It is a medical imaging test that combines a Single-Photon Emission Computed Tomography (SPECT) scan with a Computed Tomography (CT) scan to provide both detailed physiological (function) and anatomical (structure) information about the body. A radioactive tracer is injected and detected by the SPECT camera to show organ function, while the CT scan captures precise images of the body's structures, allowing for precise localization of the tracer and identification of abnormalities in a single, comprehensive study.

Intervention Type DEVICE