Comparison of fat-suppressed T2-weighted fast spin-echo sequence and modified STIR sequence in the evaluation of the rotator cuff tendon

Richard Kijowski, Joshua M. Farber, Jorge Medina, William Morrison, Jun Ying, Kenneth Buckwalter

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

OBJECTIVE. This study was performed to determine whether a modified version of the classic STIR sequence provides similar information about the integrity of the rotator cuff tendon as the commonly used fat-suppressed T2-weighted fast spin-echo sequence. SUBJECTS AND METHODS. Sixty-one consecutive MRI examinations of the shoulder in 57 patients were performed using a coronal oblique T1-weighted spin-echo sequence, a modified version of the STIR sequence, and a fat-suppressed T2-weighted fast spin-echo sequence. Three reviewers independently assessed the rotator cuff tendon using the coronal oblique modified inversion recovery sequence and T1-weighted spin-echo sequence. After a minimum of 4 weeks, reviewers assessed the rotator cuff tendon using the fat-suppressed T2-weighted fast spin-echo sequence and T1-weighted spin-echo sequence. The kappa statistic was used to measure the degree of concordance between interpretations when each sequence was used independently. The conditional probability that a full- and a partial-thickness tear would be diagnosed on both sequences was calculated. Image quality was assessed in a side-by-side comparison. RESULTS. The overall weighted kappa score was 0.82, which indicates excellent concordance between the two sequences. If a full-thickness tear of the rotator cuff tendon was found on the fat-suppressed T2-weighted fast spin-echo sequence, there was a 94.1% probability that the same conclusion would be reached using the modified inversion recovery sequence. If a partial-thickness tear was found on the tat-suppressed T2-weighted fast spin-echo sequence, there was an 80.3% probability that the same conclusion would be reached with the modified inversion recovery sequence. Fat suppression in the modified inversion recovery sequence was superior to that in the T2-weighted fast spin-echo sequence in 26-39% of the examinations. CONCLUSION. The modified inversion recovery sequence and fat-suppressed T2-weighted fast spin-echo sequence provide similar information about the integrity of the rotator cuff tendon.

Original languageEnglish
Pages (from-to)371-378
Number of pages8
JournalAmerican Journal of Roentgenology
Volume185
Issue number2
StatePublished - 2005

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Rotator Cuff
Sequence Inversion
Tendons
Fats
Tears

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Comparison of fat-suppressed T2-weighted fast spin-echo sequence and modified STIR sequence in the evaluation of the rotator cuff tendon. / Kijowski, Richard; Farber, Joshua M.; Medina, Jorge; Morrison, William; Ying, Jun; Buckwalter, Kenneth.

In: American Journal of Roentgenology, Vol. 185, No. 2, 2005, p. 371-378.

Research output: Contribution to journalArticle

Kijowski, Richard ; Farber, Joshua M. ; Medina, Jorge ; Morrison, William ; Ying, Jun ; Buckwalter, Kenneth. / Comparison of fat-suppressed T2-weighted fast spin-echo sequence and modified STIR sequence in the evaluation of the rotator cuff tendon. In: American Journal of Roentgenology. 2005 ; Vol. 185, No. 2. pp. 371-378.
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title = "Comparison of fat-suppressed T2-weighted fast spin-echo sequence and modified STIR sequence in the evaluation of the rotator cuff tendon",
abstract = "OBJECTIVE. This study was performed to determine whether a modified version of the classic STIR sequence provides similar information about the integrity of the rotator cuff tendon as the commonly used fat-suppressed T2-weighted fast spin-echo sequence. SUBJECTS AND METHODS. Sixty-one consecutive MRI examinations of the shoulder in 57 patients were performed using a coronal oblique T1-weighted spin-echo sequence, a modified version of the STIR sequence, and a fat-suppressed T2-weighted fast spin-echo sequence. Three reviewers independently assessed the rotator cuff tendon using the coronal oblique modified inversion recovery sequence and T1-weighted spin-echo sequence. After a minimum of 4 weeks, reviewers assessed the rotator cuff tendon using the fat-suppressed T2-weighted fast spin-echo sequence and T1-weighted spin-echo sequence. The kappa statistic was used to measure the degree of concordance between interpretations when each sequence was used independently. The conditional probability that a full- and a partial-thickness tear would be diagnosed on both sequences was calculated. Image quality was assessed in a side-by-side comparison. RESULTS. The overall weighted kappa score was 0.82, which indicates excellent concordance between the two sequences. If a full-thickness tear of the rotator cuff tendon was found on the fat-suppressed T2-weighted fast spin-echo sequence, there was a 94.1{\%} probability that the same conclusion would be reached using the modified inversion recovery sequence. If a partial-thickness tear was found on the tat-suppressed T2-weighted fast spin-echo sequence, there was an 80.3{\%} probability that the same conclusion would be reached with the modified inversion recovery sequence. Fat suppression in the modified inversion recovery sequence was superior to that in the T2-weighted fast spin-echo sequence in 26-39{\%} of the examinations. CONCLUSION. The modified inversion recovery sequence and fat-suppressed T2-weighted fast spin-echo sequence provide similar information about the integrity of the rotator cuff tendon.",
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T1 - Comparison of fat-suppressed T2-weighted fast spin-echo sequence and modified STIR sequence in the evaluation of the rotator cuff tendon

AU - Kijowski, Richard

AU - Farber, Joshua M.

AU - Medina, Jorge

AU - Morrison, William

AU - Ying, Jun

AU - Buckwalter, Kenneth

PY - 2005

Y1 - 2005

N2 - OBJECTIVE. This study was performed to determine whether a modified version of the classic STIR sequence provides similar information about the integrity of the rotator cuff tendon as the commonly used fat-suppressed T2-weighted fast spin-echo sequence. SUBJECTS AND METHODS. Sixty-one consecutive MRI examinations of the shoulder in 57 patients were performed using a coronal oblique T1-weighted spin-echo sequence, a modified version of the STIR sequence, and a fat-suppressed T2-weighted fast spin-echo sequence. Three reviewers independently assessed the rotator cuff tendon using the coronal oblique modified inversion recovery sequence and T1-weighted spin-echo sequence. After a minimum of 4 weeks, reviewers assessed the rotator cuff tendon using the fat-suppressed T2-weighted fast spin-echo sequence and T1-weighted spin-echo sequence. The kappa statistic was used to measure the degree of concordance between interpretations when each sequence was used independently. The conditional probability that a full- and a partial-thickness tear would be diagnosed on both sequences was calculated. Image quality was assessed in a side-by-side comparison. RESULTS. The overall weighted kappa score was 0.82, which indicates excellent concordance between the two sequences. If a full-thickness tear of the rotator cuff tendon was found on the fat-suppressed T2-weighted fast spin-echo sequence, there was a 94.1% probability that the same conclusion would be reached using the modified inversion recovery sequence. If a partial-thickness tear was found on the tat-suppressed T2-weighted fast spin-echo sequence, there was an 80.3% probability that the same conclusion would be reached with the modified inversion recovery sequence. Fat suppression in the modified inversion recovery sequence was superior to that in the T2-weighted fast spin-echo sequence in 26-39% of the examinations. CONCLUSION. The modified inversion recovery sequence and fat-suppressed T2-weighted fast spin-echo sequence provide similar information about the integrity of the rotator cuff tendon.

AB - OBJECTIVE. This study was performed to determine whether a modified version of the classic STIR sequence provides similar information about the integrity of the rotator cuff tendon as the commonly used fat-suppressed T2-weighted fast spin-echo sequence. SUBJECTS AND METHODS. Sixty-one consecutive MRI examinations of the shoulder in 57 patients were performed using a coronal oblique T1-weighted spin-echo sequence, a modified version of the STIR sequence, and a fat-suppressed T2-weighted fast spin-echo sequence. Three reviewers independently assessed the rotator cuff tendon using the coronal oblique modified inversion recovery sequence and T1-weighted spin-echo sequence. After a minimum of 4 weeks, reviewers assessed the rotator cuff tendon using the fat-suppressed T2-weighted fast spin-echo sequence and T1-weighted spin-echo sequence. The kappa statistic was used to measure the degree of concordance between interpretations when each sequence was used independently. The conditional probability that a full- and a partial-thickness tear would be diagnosed on both sequences was calculated. Image quality was assessed in a side-by-side comparison. RESULTS. The overall weighted kappa score was 0.82, which indicates excellent concordance between the two sequences. If a full-thickness tear of the rotator cuff tendon was found on the fat-suppressed T2-weighted fast spin-echo sequence, there was a 94.1% probability that the same conclusion would be reached using the modified inversion recovery sequence. If a partial-thickness tear was found on the tat-suppressed T2-weighted fast spin-echo sequence, there was an 80.3% probability that the same conclusion would be reached with the modified inversion recovery sequence. Fat suppression in the modified inversion recovery sequence was superior to that in the T2-weighted fast spin-echo sequence in 26-39% of the examinations. CONCLUSION. The modified inversion recovery sequence and fat-suppressed T2-weighted fast spin-echo sequence provide similar information about the integrity of the rotator cuff tendon.

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