High resolution CT mammography of surgical biopsy specimens.


PURPOSE:Our goal was to assess the performance of high resolution CT on breast biopsy specimens before considering the reevaluation of refined CT techniques in patients with breast abnormalities. METHOD:High resolution CT was done in 44 surgical biopsy specimens following conventional X-ray specimen mammography. The specimens comprised 38 palpable and nonpalpable soft tissue abnormalities with mean size of 19 mm and 6 specimens with clustered microcalcifications only. There were 21 carcinomas, 10 fibroadenomas, and 13 other benign conditions. Evaluation of CT and conventional images was done separately, and a feature-grading list was used to compare the two modalities. RESULTS:In fatty specimens, grading of morphologic features of masses and the confidence to detect a soft tissue abnormality were equal with both techniques. CT significantly improved the confidence to detect a mass in 17 specimens with dense tissue: On a scale of 0-10, the mean score for detection was 3.8 with radiography and 5.8 with CT (p<0.008). For clustered microcalcifications, X-ray was superior to CT. The mean CT attenuation of 18 malignant masses (82 HU) was significantly lower than the mean attenuation of 10 fibroadenomas (131 HU; p = 0.003). CT scans of the American College of Radiology test phantom met the requirements for X-ray accreditation. CONCLUSION:For soft tissue abnormalities, CT specimen mammography performed equally as or better than specimen radiography. These in vitro results suggest potential advantages for increased sensitivity and specificity with CT and justify further investigations.


J Comput Assist Tomogr


Raptopoulos V,Baum JK,Hochman M,Karellas A,Houlihan MJ,D'Orsi CJ




Has Abstract


1996-03-01 00:00:00












  • MRI of the sinus tarsi in acute ankle sprain injuries.

    abstract:PURPOSE:Our goal was to evaluate the visibility and incidence of traumatic abnormalities of the sinus tarsi in patients with acute ankle sprain injuries and compare these findings with the extent of lateral ankle ligament injuries on MRI. METHOD:Sixty athletically active patients (aged 18-45 years) with recent inversi...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Breitenseher MJ,Haller J,Kukla C,Gaebler C,Kaider A,Fleischmann D,Helbich T,Trattnig S

    更新日期:1997-03-01 00:00:00

  • Fluid collections in the osseous tunnel during the first year after anterior cruciate ligament repair using an autologous hamstring graft: natural history and clinical correlation.

    abstract:OBJECTIVE:To determine the natural history of fluid collections that occur within the osseous tunnel after autologous hamstring repair of the anterior cruciate ligament (ACL) and to correlate with clinical outcomes. METHODS:Twenty-two patients were imaged within 1 year after autologous hamstring repair of the ACL and ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Sanders TG,Tall MA,Mulloy JP,Leis HT

    更新日期:2002-07-01 00:00:00

  • The spotted spleen: CT and clinical correlation in a tertiary care center.

    abstract:PURPOSE:The goal of our study was to examine the prevalence of multiple hypodense splenic nodules and their associated diagnoses and to correlate CT appearance with clinical presentation and diagnosis. METHOD:Records of all patients undergoing contrast-enhanced CT from July 1994 through September 1997 were reviewed. C...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Warshauer DM,Molina PL,Worawattanakul S

    更新日期:1998-09-01 00:00:00

  • Screening protocol for MR imaging of the internal auditory canal.

    abstract::We have previously shown that 5 mm axial T1-weighted images following Gd-diethylenetriamine pentaacetic acid (DTPA) administration were sufficient as a screening examination of the internal auditory canal (IAC) and cerebellopontine angle cistern in 80% of cases with sensorineural hearing loss. In the remaining 20% of ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Litt AW,Mirsky P,Berson BD,Kricheff II

    更新日期:1991-11-01 00:00:00

  • Automated Early Identification of an Excessive Air-in-Oil X-ray Tube Artifact That Mimics Acute Cerebral Infarct.

    abstract:PURPOSE:This study aimed to develop an automated, quantitative method to increase the likelihood of identifying and preventing such air-in-oil (AIO) artifact. METHODS:A 1-dimensional radial representation of the 2-dimensional noise power spectrum (NPS) was calculated from AIO artifact images and compared with artifact...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Jaffe TA,Winslow J,Zhang Y,Allen BC,Choudhury KR,Samei E

    更新日期:2019-01-01 00:00:00

  • Comparison of delayed enhanced CT and 18F-FDG PET/CT in the evaluation of adrenal masses in oncology patients.

    abstract:OBJECTIVE:To retrospectively compare delayed enhanced computed tomography (CT) and 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET)/CT (PET/CT) evaluating adrenal masses in oncology patients undergoing both examinations. METHODS:Twenty adrenal masses in 14 patients were retrospectively included. For d...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Park BK,Kim CK,Kim B,Choi JY

    更新日期:2007-07-01 00:00:00

  • Computed tomography of adrenal abscess.

    abstract::We present a patient with a progressively enlarging adrenal mass detected by CT which extended to the renal hilum and inferior vena cava. Pathologic evaluation revealed an adrenal abscess containing purulent debris. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: O'Brien WM,Choyke PL,Copeland J,Klappenbach RS,Lynch JH

    更新日期:1987-05-01 00:00:00

  • CT demonstration of an ectopic pancreatic tail causing a renal pseudotumor.

    abstract::Renal pseudotumors may be intrinsic or extrinsic to the renal parenchyma. A case in which an ectopic position of the pancreatic tail simulated a solid left renal mass on nephrotomography and ultrasonography is presented. Computed tomography was important in confirming the etiology of the mass. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Moss GD,Malvar TC

    更新日期:1983-08-01 00:00:00

  • Diffusion-weighted imaging distinguishes recurrent epidermoid neoplasm from postoperative arachnoid cyst in the lumbosacral spine.

    abstract::Diffusion-weighted imaging can be used to distinguish epidermoid tumor from arachnoid cyst in the intracranial compartment. We report the use of diffusion-weighted imaging in a postoperative spine to successfully distinguish a recurrent epidermoid tumor from arachnoid cyst in a noninvasive manner. Our case illustrates...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Tang L,Cianfoni A,Imbesi SG

    更新日期:2006-05-01 00:00:00

  • MR imaging of the normal larynx.

    abstract::Magnetic resonance imaging of the larynx was performed on 15 volunteers. Searching for optimal images in the sagittal, frontal, and transverse planes, we compared images made with a special surface coil and the standard head coil, images with different slice thicknesses, images with different repetition times (TR) and...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Castelijns JA,Doornbos J,Verbeeten B Jr,Vielvoye GJ,Bloem JL

    更新日期:1985-09-01 00:00:00

  • Investigating demyelination in the brain in a canine model of globoid cell leukodystrophy (Krabbe disease) using magnetization transfer contrast: preliminary results.

    abstract:PURPOSE:This study was designed to examine the use of quantitative magnetization transfer imaging (MTI) in naturally occurring globoid cell leukodystrophy (GLD) in the Cairn terrier. METHOD:A model of GLD was established via a breeding colony, and a total of seven animals were studied with MTI, including two dogs with...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: McGowan JC,Haskins M,Wenger DA,Vite C

    更新日期:2000-03-01 00:00:00

  • Medial Synovial Fold of the Posterior Cruciate Ligament on Knee Magnetic Resonance Imaging and Arthroscopy: Retrospective Investigation of Impingement.

    abstract:OBJECTIVE:The purpose of this study was to classify the types of medial synovial fold of the posterior cruciate ligament (PCL) on magnetic resonance imaging (MRI) and to identify the relationships between fold type and impingement of the PCL on arthroscopy. SUBJECTS AND METHODS:Ninety-nine patients who underwent knee ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Yoon KH,Tak DH,Park JS,Joo YB,Lee S

    更新日期:2016-09-01 00:00:00

  • Virtual Monoenergetic Images for Diagnostic Assessment of Hypodense Lesions Within the Liver: Semiautomatic Estimation of Window Settings Using Linear Models.

    abstract:OBJECTIVE:The aim of the study was to establish the reference window settings for display of virtual monoenergetic images (VMIs) from spectral detector computed tomography when assessing hypodense liver lesions. METHODS:In patients with cysts (n = 24) or metastases (n = 26), objective (HU, signal-to-noise ratio [SNR])...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Große Hokamp N,Obmann VC,Kessner R,Gilkeson RC,Gupta A,Persigehl T,Haneder S,Ramaiya N

    更新日期:2018-11-01 00:00:00

  • Detection of renal ischemic lesions using Gd-DTPA enhanced turbo FLASH MRI: experimental and clinical results.

    abstract:PURPOSE:Our goal was to investigate the role of Gd-DTPA-enhanced dynamic MRI in the evaluation of renal ischemic lesions. METHOD:With a turbo FLASH sequence before and after injection of Gd-DTPA, nine foxhound dogs after 60-120 min of renal ischemia underwent MR examination. In addition, five patients with a tumor in ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Vosshenrich R,Kallerhoff M,Gröne HJ,Fischer U,Funke M,Kopka L,Siebert G,Ringert RH,Grabbe E

    更新日期:1996-03-01 00:00:00

  • High-resolution contrast-enhanced MRI of the uterus with a phased-array multicoil.

    abstract::High-resolution contrast-enhanced dynamic MRI of the uterus can be performed with the combination of a phased-array multicoil and fast GE techniques. This technique can improve the ability to visualize normal anatomy of the uterus and periuterine tissues, including vascular structures and pelvic ligaments, and to dete...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Ito K,Honjo K,Fujita T,Awaya H,Matsumoto T,Matsunaga N

    更新日期:1998-09-01 00:00:00

  • Baseline Cartilage Thickness and Meniscus Extrusion Predict Longitudinal Cartilage Loss by Quantitative Magnetic Resonance Imaging: Data From the Osteoarthritis Initiative.

    abstract:OBJECTIVE:This study aimed to assess how meniscus damage and baseline cartilage thickness influence the rate of cartilage loss and knee pain. METHODS:Of 4796 participants in the Osteoarthritis Initiative, 86 had baseline and 48-month follow-up quantitative magnetic resonance imaging data for medial compartment cartila...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章,多中心研究


    authors: Klein JS,Jose J,Baraga MG,Subhawong TK

    更新日期:2016-11-01 00:00:00

  • Myocardial perfusion magnetic resonance imaging using sliding-window conjugate-gradient HYPR methods in canine with stenotic coronary arteries.

    abstract:PURPOSE:First-pass perfusion magnetic resonance imaging (MRI) is a promising technique for detecting ischemic heart disease. However, the diagnostic value of the method is limited by the low spatial coverage, resolution, signal-to-noise ratio (SNR), and cardiac motion-related image artifacts. A combination of sliding w...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Ge L,Kino A,Lee D,Dharmakumar R,Carr JC,Li D

    更新日期:2010-09-01 00:00:00

  • MR imaging of vasculitis of the testis.

    abstract::Vasculitis of the testis, although common pathologically, has been difficult to diagnose clinically and to detect noninvasively. This report describes the added benefit of MR imaging in directing clinical management in a patient where the first manifestation of vasculitis was scrotal pain and swelling. This subject wa...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Hayward I,Trambert MA,Mattrey RF,Saltzstein SL,Demby AM

    更新日期:1991-05-01 00:00:00

  • Erosion of the scapula by a benign lipoma: computed tomography diagnosis.

    abstract::A lipoma eroding the scapula is diagnosed by computed tomography. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Lloyd TV,Paul DJ

    更新日期:1979-10-01 00:00:00

  • Imaging of Hereditary Tumors of the Female Genital System.

    abstract::Cancers of the female genital system, particularly endometrial and ovarian cancers, can be associated with hereditary cancer syndromes such as hereditary breast and ovarian cancer and Lynch syndrome. Cancers that are found in the setting of a hereditary cancer syndrome are often unique in presentation, clinical featur...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章,评审


    authors: Rothan SM,Menias CO,ElGuindy YM,Jensen CT,Shaaban AM,Bhosale P,Lee MV,Katabathina VS,Elsayes KM

    更新日期:2017-05-01 00:00:00

  • SPECT and MR imaging in herpes simplex encephalitis.

    abstract::Two cases of necrotizing herpes simplex encephalitis (HSE) were investigated with 99mTc-hexamethylpropyleneamineoxime (HMPAO) SPECT and MR. The clinical course was compared with the neuroimaging results. In the acute stage, the increased HMPAO uptake matched the MR hyperintense signal in the limbic temporal lobe and i...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Schmidbauer M,Podreka I,Wimberger D,Oder W,Koch G,Wenger S,Goldenberg G,Asenbaum S,Deecke L

    更新日期:1991-09-01 00:00:00

  • Comparison of 320-row computed tomography coronary angiography with conventional angiography for the assessment of coronary artery disease with different atherosclerotic plaque characteristics.

    abstract:OBJECTIVE:The objective of this study was to compare the accuracy of 320-row computed tomography angiography (CTA) with conventional coronary angiography. METHODS:Two hundred seventy-four patients with coronary artery disease who received both invasive coronary angiography and 320-row CTA were included. Stenosis of 50...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Yang QH,Chen YJ,Liu QQ,Dong M,Wen L,Song X,Lv YJ,Gong YZ,Li XQ

    更新日期:2012-11-01 00:00:00

  • Diffuse neonatal hemangiomatosis: CT findings in an adult.

    abstract::Diffuse neonatal hemangiomatosis (DNH) is a rare disorder that usually presents in infancy and has a high mortality rate. We report a long-term adult survivor of DNH who presented with multiple calcifications in the bowel wall, liver, spleen, and adrenal glands on CT. Diffuse neonatal hemangiomatosis needs to be added...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Latifi HR,Siegel MJ

    更新日期:1992-11-01 00:00:00

  • Multiplanar image reconstruction and 3D imaging using a musculoskeletal phantom: conventional versus helical CT.

    abstract:PURPOSE:Our goal was to perform a detailed comparison of the relative performances of helical CT (pitches 1.0, 1.5, and 2.0) and conventional (overlapped and nonoverlapped) CT in detailed 3D and MPR musculoskeletal imaging. METHOD:A specially designed bone fragment phantom was imaged with multiple slice thicknesses us...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Kasales CJ,Mauger DT,Sefczek RJ,Mahraj R,Meilstrup JW,Van Hook D,Patrone SV,Sefczek DM,Eggli KD,Wise SW,Westacott S,Hopper KD

    更新日期:1997-01-01 00:00:00

  • Diffuse mesenteric amyloidosis: CT, sonographic, and pathologic findings.

    abstract::We report an unusual case of diffuse infiltration of the mesentery by amyloidosis. The CT, sonographic, and operative findings mimicked abdominal carcinomatosis. ...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Allen HA 3rd,Vick CW,Messmer JM,Parker GA

    更新日期:1985-01-01 00:00:00

  • Posterior reversible encephalopathy syndrome and cerebral vasculopathy associated with influenza A infection: report of a case and review of the literature.

    abstract:BACKGROUND AND PURPOSE:Influenza A infection can precipitate encephalopathy, encephalitis, or Reye syndrome with the development of cerebral edema in children and is associated with an increased incidence of stroke in adults. The mechanism of these events is poorly understood. Posterior reversible encephalopathy syndro...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Bartynski WS,Upadhyaya AR,Boardman JF

    更新日期:2009-11-01 00:00:00

  • "Bridging vascular sign" in the MR diagnosis of exophytic uterine leiomyoma.

    abstract:PURPOSE:The purpose of this study was to evaluate the usefulness of the "bridging vascular sign" in the diagnosis of an exophytic uterine leiomyoma and differentiation of a uterine leiomyoma from some other mass arising in the adnexa on pelvic MRI. METHOD:Of 52 women with a pelvic mass in whom pelvic MRI was performed...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Kim JC,Kim SS,Park JY

    更新日期:2000-01-01 00:00:00

  • Diffusion magnetic resonance imaging in infantile neuroaxonal dystrophy.

    abstract::A 7-month-old girl with infantile neuroaxonal dystrophy is reported. In diffusion MRI, the pyramidal tracts and dentate nuclei had high signal on b = 1,000 s/mm2 images and low apparent diffusion coefficient (ADC) values. This pattern likely reflected the presence of abnormal (dystrophic) axons with restricted mobilit...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Sener RN

    更新日期:2003-01-01 00:00:00

  • "Fogging effect" in MR of cerebral infarct.

    abstract::In a case of cerebral infarction the lesions were isointense to slightly hyperintense in the T2-weighted MR images obtained approximately 2 weeks after the onset. Earlier (1 week after onset), they had been markedly hyperintense. The probably mechanisms behind this phenomenon, referred to as "MR fogging" are discussed...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Asato R,Okumura R,Konishi J

    更新日期:1991-01-01 00:00:00

  • Computed tomography for localizing enlarged parathyroid glands in primary hyperparathyroidism.

    abstract::Computed tomography (CT) has been performed in 21 patients with primary hyperparathyroidism (HPT) in an attempt to localize preoperatively the parathyroid tumors. Eighteen of these patients also had ultrasound examinations. The CT examinations included the neck and mediastinum and were performed before and after contr...

    journal_title:Journal of computer assisted tomography

    pub_type: 杂志文章


    authors: Sommer B,Welter HF,Spelsberg F,Scherer U,Lissner J

    更新日期:1982-06-01 00:00:00