Criteria for classifying normal and degenerated lumbar intervertebral disks.

Abstract:

:The purpose of this study was to develop criteria for distinguishing normal and degenerated lumbar intervertebral disks. Cryomicrotome sections from and magnetic resonance images of 31 cadavers were reviewed. The immature nucleus pulposus, found up to age 2 years; the transitional nucleus pulposus, found in teenagers; and the adult nucleus pulposus were associated with an intact anulus fibrosus without tears except for small concentric or transverse tears in the periphery of the anulus fibrosus. Discoloration of the nucleus pulposus, diminishing disk height, and diminishing signal intensity were associated consistently with a radial tear of the anulus fibrosus. The severely degenerated nucleus pulposus was associated also with a radial tear or complete disruption of the anulus fibrosus. The results suggest that intervertebral disk normally progresses from the immature to the transitional to the adult nucleus pulposus. When a radial tear develops in the anulus there is shrinkage and disorganization of fibrocartilage in the nucleus pulposus and replacement of the disk by dense fibrous tissue and cystic spaces.

journal_name

Radiology

journal_title

Radiology

authors

Yu S,Haughton VM,Sether LA,Ho KC,Wagner M

doi

10.1148/radiology.170.2.2911680

subject

Has Abstract

pub_date

1989-02-01 00:00:00

pages

523-6

issue

2

eissn

0033-8419

issn

1527-1315

journal_volume

170

pub_type

杂志文章
  • Short-limb skeletal dysplasias: evaluation of the fetal spine with sonography and radiography.

    abstract::Sonograms and radiographs of the lumbar spine in 51 fetuses and neonates with thanatophoric dwarfism, achondroplasia, and osteogenesis imperfecta type II were retrospectively evaluated. Study data included 27 prenatal and 27 neonatal sonograms and radiographs in 40 fetuses and neonates and 11 cases described in the ra...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.174.1.2403680

    authors: Rouse GA,Filly RA,Toomey F,Grube GL

    更新日期:1990-01-01 00:00:00

  • Depiction of diaphragmatic muscle slips on supine plain radiographs: a sign of pneumoperitoneum.

    abstract:PURPOSE:To describe the diaphragm muscle slip sign, a previously unreported finding of pneumoperitoneum on plain radiographs. MATERIALS AND METHODS:Diaphragmatic muscle slips were observed on supine plain abdominal (n = 6) or recumbent frontal chest (n = 3) radiographs in nine patients. Computed tomographic (CT) confi...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.203.2.9114100

    authors: Cho KC,Baker SR

    更新日期:1997-05-01 00:00:00

  • The significance of bone expansion associated with the diagnosis of malignant tumors of the paranasal sinuses.

    abstract::Squamous cell carcinoma is aggressive, destroying surrounding bony margins. The radiographic finding of an expansile mass is rarely if ever caused solely by squamous cell carcinoma, and it should prompt the radiologist to question either the pathological diagnosis or the coexistence of a mucocele. Surgery prior to rad...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.136.1.7384530

    authors: Som PM,Shugar JM

    更新日期:1980-07-01 00:00:00

  • Clinical digital breast tomosynthesis system: dosimetric characterization.

    abstract:PURPOSE:To comprehensively characterize the dosimetric properties of a clinical digital breast tomosynthesis (DBT) system for the acquisition of mammographic and tomosynthesis images. MATERIALS AND METHODS:Compressible water-oil mixture phantoms were created and imaged by using the automatic exposure control (AEC) of ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.11111789

    authors: Feng SS,Sechopoulos I

    更新日期:2012-04-01 00:00:00

  • Gender differences in vertebral sizes in adults: biomechanical implications.

    abstract:PURPOSE:To determine if vertebral bone densities or vertebral body sizes contribute to gender differences in vertebral bone mass in adults. MATERIALS AND METHODS:Cancellous and cortical bone densities and dimensions of three lumbar vertebrae in 25 women and 18 men were measured with quantitative computed tomography (C...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.190.3.8115610

    authors: Gilsanz V,Boechat MI,Gilsanz R,Loro ML,Roe TF,Goodman WG

    更新日期:1994-03-01 00:00:00

  • Percutaneous endoscopic cholecystolithotripsy. Work in progress.

    abstract::In spite of long-term adjunctive oral dissolution therapy, residual gallstones have been reported in up to 50% of gallstone patients 3 months after extracorporeal shock-wave lithotripsy. Six women and five men, aged 31-75 years, underwent percutaneous endoscopic cholecystolithotripsy between April 1988 and October 198...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.173.2.2678260

    authors: Hruby W,Stackl W,Urban M,Armbruster C,Marberger M

    更新日期:1989-11-01 00:00:00

  • Negative-mode soft-tissue xeroradiography.

    abstract::Positive-mode xeroradiography is an excellent method of visualizing soft-tissue structures in mammography and other procedures; however, toner deletions over a large area may preclude adequate delineation of the soft tissues near high-density structures such as bone. Use of the negative mode in the development cycle p...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/124.3.689

    authors: Osterman FA Jr,Zeman GH,Rao GU,Gayler B,Kirk BG,James AE Jr

    更新日期:1977-09-01 00:00:00

  • Mammographic parenchymal patterns and the prevalence of breast cancer.

    abstract::An investigation of the relationship between breast parenchymal patterns and breast cancer prevalence in a large referral population is presented. Mammograms were assigned to one of four categories according to our interpretation of Wolfe's classification. Cancer prevalence for the four patterns was similar when uncor...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/125.2.387

    authors: Peyster RG,Kalisher L,Cole P

    更新日期:1977-11-01 00:00:00

  • Peripheral vision, structured noise and film reader error.

    abstract::The ability of film readers to detect a nodular target abnormality with the peripheral vision was studied using a gray structureless background, chest radiographs with a bilateral pneumothorax and chest radiographs with pulmonary vasculature. Peripheral detection of the nodular abnormality was profoundly decreased by ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/114.2.269

    authors: Kundel HL

    更新日期:1975-02-01 00:00:00

  • Display of CT studies on a two-screen electronic workstation versus a film panel alternator: sensitivity and efficiency among radiologists.

    abstract::Prototype electronic workstations incorporated in networks linking computed tomographic (CT) and magnetic resonance imaging systems are being developed. The authors compared observer efficiency and sensitivity in reading body CT studies from a two-screen workstation (1,000-line monitors and 12-bit dynamic range in ima...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.174.3.2305060

    authors: Foley WD,Jacobson DR,Taylor AJ,Goodman LR,Stewart ET,Gurney JW,Stroka D

    更新日期:1990-03-01 00:00:00

  • Delineation of optic nerves and chiasm in close proximity to large suprasellar tumors with contrast-enhanced FIESTA MR imaging.

    abstract:PURPOSE:To evaluate whether contrast material-enhanced (CE) fast imaging employing steady-state acquisition (FIESTA) can depict the anterior optic pathways in patients with large suprasellar tumors. MATERIALS AND METHODS:Institutional review board approval was obtained. Twenty-eight patients with large suprasellar tum...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.12111363

    authors: Watanabe K,Kakeda S,Yamamoto J,Watanabe R,Nishimura J,Ohnari N,Nishizawa S,Korogi Y

    更新日期:2012-09-01 00:00:00

  • Anterior pontomesencephalic vein and basilar artery in exophytic brainstem gilioma.

    abstract::The angiographic differentiation of an intrinsic exophytic brainstem glioma from an extra-axial posterior fossa tumor is not always easy. The location of the basilar artery alone may not be significant. Displacement of the anterior pontomesencephalic vein anterior to the basilar artery appears to be a reliable indicat...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/124.2.403

    authors: Sarwar M,Bafnitzky S,Schechter MM

    更新日期:1977-08-01 00:00:00

  • Cerebral circulation after cardiac arrest. Angiographic and carbon black perfusion studies.

    abstract::Cardiac arrest of 2-15 minutes was induced in 14 dogs. When circulatory arrest lasted longer than 5 minutes, abnormal cerebral angiographic findings were seen 3-4 hours after resuscitation, consisting of (a) marked prolongation of the arterial phase in both intracranial and extracranial arteries, and (b) faint (poor) ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/117.3.627

    authors: Lin SR

    更新日期:1975-12-01 00:00:00

  • Invasive cervical carcinoma: role of MR imaging in pretreatment work-up--cost minimization and diagnostic efficacy analysis.

    abstract:PURPOSE:To examine the cost and efficacy of diagnostic work-up in patients with invasive cervical cancer. MATERIALS AND METHODS:In 246 patients with invasive cervical cancer, all diagnostic tests performed before treatment were recorded. Patients were divided into two groups: those who underwent magnetic resonance (MR...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.198.2.8596840

    authors: Hricak H,Powell CB,Yu KK,Washington E,Subak LL,Stern JL,Cisternas MG,Arenson RL

    更新日期:1996-02-01 00:00:00

  • Effects of a Thermal Accelerant Gel on Microwave Ablation Zone Volumes in Lung: A Porcine Study.

    abstract::Background Thermal ablation of cancers may be associated with high rates of local tumor progression. A thermal accelerant gel has been developed to improve the transmission of microwave energy in biologic tissues with the aim of enlarging the thermal ablation zone. Purpose To determine the effects of a thermal acceler...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2019181652

    authors: Maxwell AWP,Park WKC,Baird GL,Martin DW,Lombardo KA,Dupuy DE

    更新日期:2019-05-01 00:00:00

  • Diagnosis of nonopaque calculi by computed tomography.

    abstract::Computed tomography can aid in the distinction of calculi from both tumors and clots in the urinary tract. Its availability, simplicity of interpretation, and noninvasiveness establish it as an important diagnostic modality in selected cases when calculus is in the differential diagnosis of upper urinary tract filling...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/129.2.447

    authors: Segal AJ,Spataro RF,Linke CA,Frank IN,Rabinowitz R

    更新日期:1978-11-01 00:00:00

  • Roentgenographic manifestations of methadone-induced pulmonary edema.

    abstract::Twenty cases of methadone-induced pulmonary edema confirmed by clinical, laboratory and roentgenographic findings were extensively reviewed and the roentgenographic manifestations defined in terms of patterns, distribution, and duration of the process. Drug tolerance is a major factor in determining the severity of to...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/114.1.51

    authors: Wilen SB,Ulreich S,Rabinowitz JG

    更新日期:1975-01-01 00:00:00

  • Pulmonary infections after bone marrow transplantation: clinical and radiographic findings.

    abstract:PURPOSE:To assess the clinical and radiographic findings of pulmonary infections diagnosed by using invasive means. MATERIALS AND METHODS:Fifty-nine episodes of pulmonary infection were diagnosed in 52 (7.2%) of a consecutive series of 725 adult bone marrow transplant recipients. Causative organisms, time of diagnoses...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.210.3.r99mr39699

    authors: Leung AN,Gosselin MV,Napper CH,Braun SG,Hu WW,Wong RM,Gasman J

    更新日期:1999-03-01 00:00:00

  • Duodenum and duodenal-jejunal junction in children: position and appearance after liver transplantation.

    abstract:PURPOSE:To correlate upper gastrointestinal study findings of the position of the duodenum and duodenal-jejunal junction in children after liver transplantation with transplant type, age at transplantation, indication for transplantation, and history of surgery or malrotation. MATERIALS AND METHODS:Upper gastrointesti...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.207.1.9530320

    authors: Benya EC,Ben-Ami TE,Whitington PF,Alonso EM,Millis JM,Yousefzadeh DK

    更新日期:1998-04-01 00:00:00

  • Sonography of portosystemic venous collaterals in portal hypertension.

    abstract::Portosystemic venous collaterals were studied with sonography in 40 patients with known portal hypertension. Eight patients had technically inadequate scans, while 32 had optimal scans. Sixty groups of venous collaterals were identified. At least one collateral pathway was seen in 28 patients, for a sensitivity of 88%...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.146.1.6849040

    authors: Subramanyam BR,Balthazar EJ,Madamba MR,Raghavendra BN,Horii SC,Lefleur RS

    更新日期:1983-01-01 00:00:00

  • Objective assessment of mammography systems. Part II: Implementation.

    abstract::A quality control program for mammography units was carried out, based on objective tests of image quality and dose. Results are reported for 31 units, including correlation between various parameters. Satisfactory results were obtained in the case of 21 installations; for the other 10, comparison between measured qua...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.156.1.4001410

    authors: Hessler C,Depeursinge C,Grecescu M,Pochon Y,Raimondi S,Valley JF

    更新日期:1985-07-01 00:00:00

  • Skeletal metastases from hepatoma: frequency, distribution, and radiographic features.

    abstract::Over the past 6 years, the authors evaluated 300 patients with hepatoma as part of phase 1 and 2 treatment protocol trials. Analysis of the available clinical data and radiographic studies revealed 22 patients (7.3%) with skeletal metastases demonstrated by radiography, computed tomography (CT), and/or nuclear scintig...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.160.1.3012630

    authors: Kuhlman JE,Fishman EK,Leichner PK,Magid D,Order SE,Siegelman SS

    更新日期:1986-07-01 00:00:00

  • Varicosity of the left renal ascending lumbar communicant vein: a pitfall in CT diagnosis.

    abstract::An anastomosis between the left renal and left ascending lumbar veins may appear as a mass on CT scans due to a varicosity where the veins separate. Intravenous injection of contrast material reveals the vascular nature of the mass. ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.152.2.6739820

    authors: Lien HH,von Krogh J

    更新日期:1984-08-01 00:00:00

  • Clostridium-produced gas gangrene of the colon.

    abstract::A case of radiologically demonstrable gas gangrene of the colon was proved pathologically to be caused by C. perfringens. The case was radiologically indistinguishable from that of bowel infarction. When intramural gas is seen in patients with the symptoms of toxemia but without the bloody diarrhea associated with bow...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/124.1.26

    authors: Rudikoff JC

    更新日期:1977-07-01 00:00:00

  • Perimesencephalic Hemorrhage: Yield of Single versus Multiple DSA Examinations-A Single-Center Study and Meta-Analysis.

    abstract::Purpose To quantify the rate of detection of aneurysms at follow-up digital subtraction angiography (DSA) after initial DSA with results negative for aneurysms in subjects with perimesencephalic (PM) nonaneurysmal subarachnoid hemorrhage. Materials and Methods This single-center retrospective study and meta-analysis w...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2016152402

    authors: Potter CA,Fink KR,Ginn AL,Haynor DR

    更新日期:2016-12-01 00:00:00

  • Does multi-detector row CT pulmonary angiography reduce the incremental value of indirect CT venography compared with single-detector row CT pulmonary angiography?

    abstract:PURPOSE:To compare retrospectively the incremental value of indirect computed tomographic (CT) venography performed after multi-detector row CT pulmonary angiography and single-detector row CT pulmonary angiography for the diagnosis of venous thromboembolism (VTE). MATERIALS AND METHODS:The institutional ethics commit...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2401050350

    authors: Ghaye B,Nchimi A,Noukoua CT,Dondelinger RF

    更新日期:2006-07-01 00:00:00

  • Articular cartilage: correlation of histologic zones with signal intensity at MR imaging.

    abstract::Zones of high and low signal intensity on magnetic resonance (MR) images of articular cartilage were correlated with the four histologic zones normally found in such cartilage. Grossly normal articular cartilage from knees and ankles of a fresh cadaver were used in the study. The three zones identified on MR images in...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.181.3.1947110

    authors: Modl JM,Sether LA,Haughton VM,Kneeland JB

    更新日期:1991-12-01 00:00:00

  • Manipulation of vena cava filters. Locked-catheter technique.

    abstract::A method is described for the rapid and easy manipulation of a Kimray-Greenfield vena cava filter beyond an obstructing eustachian valve. ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.150.1.6689770

    authors: Glass TA,D'Souza VJ,Velasquez G,Formanek AG,Meredith J,Albertson D

    更新日期:1984-01-01 00:00:00

  • "Blind pouch" syndrome: a cause of gastrointestinal bleeding.

    abstract::A case of blind pouch formation presenting as gastrointestinal bleeding 23 years following side-to-side small bowel anastomosis to relieve obstruction is reported. Although rare, blind pouches may occasionally be encountered. Familiarity with the clinical and radiographic features can aid in a prompt and precise preop...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/132.2.314

    authors: Maglinte DD

    更新日期:1979-08-01 00:00:00

  • Thoracic tuberculosis, mycobacteriosis, MERosis, and BCGosis in a cancer treatment center.

    abstract::Radiographs and clinical records of 100 patients with tuberculosis or mycobacteriosis and six patients infected with Bacillus Calmette-Guerin (BCG) or methanol extraction residue of BCG (MER) were reviewed. Radiographic presentations were categorized. Tuberculosis or mycobacteriosis simulated pulmonary neoplasm in 64 ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.153.2.6484160

    authors: Hill CA

    更新日期:1984-11-01 00:00:00