Usefulness of Temporal Subtraction Images for Identification of Interval Changes in Successive Whole-Body Bone Scans: JAFROC Analysis of Radiologists’ Performance

Shiraishi, Junji; Appelbaum, Daniel; Pu, Yonglin; Li, Qiang; Pesce, Lorenzo L.; Doi, Kunio

doi:10.1016/j.acra.2007.04.005

Cited by 14 publications

(5 citation statements)

References 15 publications

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“…JAFROC has undergone extensive simulation validation 19,[25][26][27] and it is currently the most widely used method for analyzing FROC data. [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] In common with DBM-MRMC analysis of ROC data, JAFROC uses the DBM/OR analysis of variance method for significance testing. 13,[15][16][17] Unless otherwise noted, in this paper by FROC analysis we mean JAFROC analysis.…”

Section: Introductionmentioning

confidence: 99%

Correlation of free‐response and receiver‐operating‐characteristic area‐under‐the‐curve estimates: Results from independently conducted FROC/ROC studies in mammography

et al. 2012

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Section: Introductionmentioning

confidence: 99%

Correlation of free‐response and receiver‐operating‐characteristic area‐under‐the‐curve estimates: Results from independently conducted FROC/ROC studies in mammography

et al. 2012

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“…Previous studies have reported the benefit of temporal subtraction techniques on lung nodules [ 9 , 10 ] and subtraction iodine imaging on head and neck cancer [ 11 , 12 ]. There are also reports on the usefulness of the TSCT technique for the detection of spinal metastases, including improved lesion detection and reduced reading time [ 5 , 6 ].…”

Section: Discussionmentioning

confidence: 99%

Improved assessment of middle ear recurrent/residual cholesteatomas using temporal subtraction CT

et al. 2021

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Purpose The purpose of this study was to investigate the usefulness of temporal subtraction CT (TSCT) of temporal bone CT for the detection of postoperative recurrent/residual cholesteatoma of the middle ear. Methods Thirty-two consecutive patients with surgically proven postoperative recurrent/residual cholesteatoma and 14 consecutive patients without recurrent/residual lesion matched the selection criteria and were retrospectively evaluated. TSCT imaging was generated with the use of serial postoperative CT. Two experienced radiologists and two residents evaluated the presence of bone erosive change by comparison serial CT studies, and CT and TSCT. The detection rate of bone erosive change, sensitivity and specificity of the recurrence/residual lesions, and reading time for each reader were evaluated. Results TSCT + CT significantly improved the detection of bone erosive changes compared to CT-only evaluation (17.4–41.3% vs. 37.0–58.7%, p = 0.008–0.046). The mean sensitivity and specificity of TSCT + CT for experienced radiologists were 0.77 and 1.00, and 0.52 and 0.97 without TSCT. The mean sensitivity and specificity of TSCT + CT for residents were 0.64 and 1.00, and 0.41 and 1.00 without TSCT. Sensitivity showed an increase in all readers. The use of TSCT significantly reduced the reading time per case in all readers (p < 0.001). Conclusion TSCT improves the depiction of newly occurring progressive bone erosive changes, and detection sensitivity and reading time in postoperative recurrence/residual cholesteatoma of middle ear.

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“…Since image intensity is of paramount importance in the diagnosis of successive bone scans, image enhancement must be used to acquire acceptable consistency in intensity. [1][2][3] Most previous studies regarding whole-body bone scans aimed to detect abnormalities in single bone scans, using conceived methods to segment a image into bone and soft tissue such as fuzzy sets, 4,5 neural network, 6 and support vector machine. 7 However, as these are not appropriate for successive whole-body bone scans, recent studies have analyzed the detection of interval changes in successive whole-body bone scans using temporal subtraction images, which were obtained using a nonlinear image-warping technique, and the use of histogram normalization for consistency of intensity in those studies could not guarantee effective detection of interval changes for the images with large variations in intensity.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Image Enhancement Methods for the Effective Diagnosis in Successive Whole-Body Bone Scans

Jeong

Kim

et al. 2010

J Digit Imaging

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Whole-body bone scan is one of the most frequent diagnostic procedures in nuclear medicine. Especially, it plays a significant role in important procedures such as the diagnosis of osseous metastasis and evaluation of osseous tumor response to chemotherapy and radiation therapy. It can also be used to monitor the possibility of any recurrence of the tumor. However, it is a very time-consuming effort for radiologists to quantify subtle interval changes between successive whole-body bone scans because of many variations such as intensity, geometry, and morphology. In this paper, we present the most effective method of image enhancement based on histograms, which may assist radiologists in interpreting successive whole-body bone scans effectively. Forty-eight successive whole-body bone scans from 10 patients were obtained and evaluated using six methods of image enhancement based on histograms: histogram equalization, brightness-preserving bi-histogram equalization, contrast-limited adaptive histogram equalization, end-in search, histogram matching, and exact histogram matching (EHM). Comparison of the results of the different methods was made using three similarity measures peak signal-to-noise ratio, histogram intersection, and structural similarity. Image enhancement of successive bone scans using EHM showed the best results out of the six methods measured for all similarity measures. EHM is the best method of image enhancement based on histograms for diagnosing successive whole-body bone scans. The method for successive whole-body bone scans has the potential to greatly assist radiologists quantify interval changes more accurately and quickly by compensating for the variable nature of intensity information. Consequently, it can improve radiologists' diagnostic accuracy as well as reduce reading time for detecting interval changes.

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Usefulness of Temporal Subtraction Images for Identification of Interval Changes in Successive Whole-Body Bone Scans: JAFROC Analysis of Radiologists’ Performance

Cited by 14 publications

References 15 publications

Correlation of free‐response and receiver‐operating‐characteristic area‐under‐the‐curve estimates: Results from independently conducted FROC/ROC studies in mammography

Correlation of free‐response and receiver‐operating‐characteristic area‐under‐the‐curve estimates: Results from independently conducted FROC/ROC studies in mammography

Improved assessment of middle ear recurrent/residual cholesteatomas using temporal subtraction CT

Comparison of Image Enhancement Methods for the Effective Diagnosis in Successive Whole-Body Bone Scans

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