Dedicated CT Scanner in an Emergency Department: Quantification of  Factors That Contribute to Lack of Use

Nuñez, Diego; Ledbetter, M. Stephen; Farrell, Lisa

doi:10.2214/ajr.179.4.1790859

Cited by 10 publications

(3 citation statements)

References 2 publications

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“…Of all emergency conditions, the multiple-trauma patient has perhaps benefited most from the introduction of multi-row detector CT, due to shorter scan times and a high spatial resolution [5][6][7][8]. Many centers are, therefore, equipped with dedicated CT scanners to allow fast access for emergency patients, especially those with multiple trauma [9].…”

Section: Introductionmentioning

confidence: 99%

A novel multiple-trauma CT-scanning protocol using patient repositioning

et al. 2006

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Emergency CT examination is considered to be a trade-off between a short scan time and the acceptance of artifacts. This study evaluates the influence of patient repositioning on artifacts and scan time. Eighty-three consecutive multiple-trauma patients were included in this prospective study. Patients were examined without repositioning (group 1, n=39) or with patient rotation to feetfirst with arms raised for scanning the chest and abdomen/ pelvis (group 2, n=44). The mean scan time was 21 min in group 1 and 25 min in group 2 (P=0.01). The mean repositioning time in group 2 was 8 min. Significantly, more artifacts were observed in group 1 (with a repeated scan in 7%) than in group 2 (P=0.0001). This novel multiple-trauma CT-scanning protocol with patient repositioning achieves a higher image quality with significantly fewer artifacts than without repositioning but increases scan time slightly.

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Section: Introductionmentioning

confidence: 99%

A novel multiple-trauma CT-scanning protocol using patient repositioning

et al. 2006

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“…On a clinical CMR imaging service, waste takes the form of added scan time due to extraneous pulse sequences, repetition of sequences not necessary for accurate diagnosis, or any extension of the examination time without added diagnostic value [7]. Waiting time, whether time spent waiting for a scan to finish or for a radiologist's assistance, and consequent "underutilization" of the scanner are examples of waste on a clinical service [10].…”

mentioning

confidence: 99%

Reporting Scan Time Reduces Cardiac MR Examination Duration

Lumish¹,

Sidhu²,

Kallianos³

et al. 2014

Journal of the American College of Radiology

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“…However, trauma centers are equipped with dedicated CT scanners to allow fast access to emergency patients, especially those with multiple injuries [14]. Scanning times of 8 minutes are realistic and first interpretation can be performed 16 minutes after arrival of the patient in the examination room and 35 minutes after admission in the ED, respectively [15].…”

Section: Introductionmentioning

confidence: 99%

The accuracy of FAST in relation to grade of solid organ injuries: A retrospective analysis of 226 trauma patients with liver or splenic lesion

et al. 2009

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BackgroundThis study investigated the role of a negative FAST in the diagnostic and therapeutic algorithm of multiply injured patients with liver or splenic lesions.MethodsA retrospective analysis of 226 multiply injured patients with liver or splenic lesions treated at Bern University Hospital, Switzerland.ResultsFAST failed to detect free fluid or organ lesions in 45 of 226 patients with spleen or liver injuries (sensitivity 80.1%). Overall specificity was 99.5%. The positive and negative predictive values were 99.4% and 83.3%. The overall likelihood ratios for a positive and negative FAST were 160.2 and 0.2. Grade III-V organ lesions were detected more frequently than grade I and II lesions. Without the additional diagnostic accuracy of a CT scan, the mean ISS of the FAST-false-negative patients would be significantly underestimated and 7 previously unsuspected intra-abdominal injuries would have been missed.ConclusionFAST is an expedient tool for the primary assessment of polytraumatized patients to rule out high grade intra-abdominal injuries. However, the low overall diagnostic sensitivity of FAST may lead to underestimated injury patterns and delayed complications may occur. Hence, in hemodynamically stable patients with abdominal trauma, an early CT scan should be considered and one must be aware of the potential shortcomings of a "negative FAST".

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Dedicated CT Scanner in an Emergency Department: Quantification of Factors That Contribute to Lack of Use

Abstract: Dedicated emergency department CT scanners can have significant daily periods of consistent lack of use. The idle time can be reduced by identifying patterns of referral time and correcting specific operational delays.

Cited by 10 publications

References 2 publications

A novel multiple-trauma CT-scanning protocol using patient repositioning

A novel multiple-trauma CT-scanning protocol using patient repositioning

Reporting Scan Time Reduces Cardiac MR Examination Duration

The accuracy of FAST in relation to grade of solid organ injuries: A retrospective analysis of 226 trauma patients with liver or splenic lesion

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